Samba: remote code execution in samr
Priority MEDIUM 48CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 46 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-78.
Summary
A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the "check password script" is used with %u and the samba-dcerpcd service is started as a system service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02501 84th percentileScored 2026-11-07
Fix Partial Red Hat: 21 advisoriesRed Hat: 46 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | 4.23.5-109.el10_2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | 4.21.3-114.el10_0.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 4.10.16-26.el7_9.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 4.10.16-26.el7_9.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 4.19.4-16.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 4.19.4-16.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 4.13.3-12.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 4.13.3-12.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 4.15.5-16.el8_6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 4.15.5-16.el8_6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 4.17.5-7.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 4.17.5-7.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 4.23.5-10.el9_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 4.23.5-10.el9_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | 4.17.5-105.el9_2.5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | 4.19.4-105.el9_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | 4.21.3-14.el9_6.1 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.12 | — | 412.86.202608241157-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.13 | — | 413.92.202609080414-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.14 | — | 414.92.202608172040-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.15 | — | 415.92.202608180329-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | — | 416.94.202608150307-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — | 417.94.202608250221-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | — | 418.94.202608142238-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | — | 4.19.9.6.202606241344-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — | 4.20.9.6.202606241928-0 | Patch available | CNA |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — | 4.21.9.6.202606241859-0 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 4.23.5-109.el10_2 Patch available CNA
- Red Hat Enterprise Linux 10.0 Extended Update Support VendorRed Hat Affected — Fixed in 4.21.3-114.el10_0.1 Patch available CNA
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 4.10.16-26.el7_9.1 Patch available CNA
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 4.10.16-26.el7_9.1 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 4.19.4-16.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 4.19.4-16.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 4.13.3-12.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 4.13.3-12.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 4.15.5-16.el8_6.1 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 4.15.5-16.el8_6.1 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 4.17.5-7.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 4.17.5-7.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 4.23.5-10.el9_8 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 4.23.5-10.el9_8 Patch available CNA
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 4.17.5-105.el9_2.5 Patch available CNA
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 4.19.4-105.el9_4.4 Patch available CNA
- Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 4.21.3-14.el9_6.1 Patch available CNA
- Red Hat OpenShift Container Platform 4.12 VendorRed Hat Affected — Fixed in 412.86.202608241157-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.13 VendorRed Hat Affected — Fixed in 413.92.202609080414-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.14 VendorRed Hat Affected — Fixed in 414.92.202608172040-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.15 VendorRed Hat Affected — Fixed in 415.92.202608180329-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.16 VendorRed Hat Affected — Fixed in 416.94.202608150307-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.17 VendorRed Hat Affected — Fixed in 417.94.202608250221-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.18 VendorRed Hat Affected — Fixed in 418.94.202608142238-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.19 VendorRed Hat Affected — Fixed in 4.19.9.6.202606241344-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.20 VendorRed Hat Affected — Fixed in 4.20.9.6.202606241928-0 Patch available CNA
- Red Hat OpenShift Container Platform 4.21 VendorRed Hat Affected — Fixed in 4.21.9.6.202606241859-0 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 4.1.0 to before 4.21.0 | Vulnerable | Samba |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.1.0 to before 4.21.0 Vulnerable ·Samba
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
Remediation
Red Hat 21 advisories
- RHSA-2026:65839 Released 2026-09-17 · Red Hat rating ImportantOpenShift Container Platform 4.13.71 bug fix and security update
- Red Hat OpenShift Container Platform 4.13 rhcos-x86_64-413.92.202609080414-0
- RHSA-2026:59831 Released 2026-09-03 · Red Hat rating ImportantOpenShift Container Platform 4.12.97 bug fix and security update
- Red Hat OpenShift Container Platform 4.12 rhcos-x86_64-412.86.202608241157-0
- RHSA-2026:60019 Released 2026-09-03 · Red Hat rating ImportantOpenShift Container Platform 4.17.57 bug fix and security update
- Red Hat OpenShift Container Platform 4.17 rhcos-aarch64-417.94.202608250221-0, rhcos-ppc64le-417.94.202608250221-0, rhcos-s390x-417.94.202608250221-0 +1
Show 18 more Red Hat advisories
- RHSA-2026:56853 Released 2026-08-31 · Red Hat rating ImportantOpenShift Container Platform 4.16.69 bug fix and security update
- Red Hat OpenShift Container Platform 4.16 rhcos-aarch64-416.94.202608150307-0, rhcos-ppc64le-416.94.202608150307-0, rhcos-s390x-416.94.202608150307-0 +1
- RHSA-2026:56786 Released 2026-08-31 · Red Hat rating ImportantOpenShift Container Platform 4.14.72 bug fix and security update
- Red Hat OpenShift Container Platform 4.14 rhcos-aarch64-414.92.202608172040-0, rhcos-ppc64le-414.92.202608172040-0, rhcos-s390x-414.92.202608172040-0 +1
- RHSA-2026:56911 Released 2026-08-31 · Red Hat rating ImportantOpenShift Container Platform 4.15.68 bug fix and security update
- Red Hat OpenShift Container Platform 4.15 rhcos-aarch64-415.92.202608180329-0, rhcos-ppc64le-415.92.202608180329-0, rhcos-s390x-415.92.202608180329-0 +1
- RHSA-2026:57483 Released 2026-08-26 · Red Hat rating ImportantOpenShift Container Platform 4.18.54 bug fix and security update
- Red Hat OpenShift Container Platform 4.18 rhcos-aarch64-418.94.202608142238-0, rhcos-ppc64le-418.94.202608142238-0, rhcos-s390x-418.94.202608142238-0 +1
- RHSA-2026:29863 Released 2026-07-02 · Red Hat rating ImportantOpenShift Container Platform 4.19.36 bug fix and security update
- Red Hat OpenShift Container Platform 4.19 rhcos-aarch64-4.19.9.6.202606241344-0, rhcos-ppc64le-4.19.9.6.202606241344-0, rhcos-s390x-4.19.9.6.202606241344-0 +1
- RHSA-2026:29799 Released 2026-06-30 · Red Hat rating ImportantOpenShift Container Platform 4.20.27 bug fix and security update
- Red Hat OpenShift Container Platform 4.20 rhcos-aarch64-4.20.9.6.202606241928-0, rhcos-ppc64le-4.20.9.6.202606241928-0, rhcos-s390x-4.20.9.6.202606241928-0 +1
- RHSA-2026:29833 Released 2026-06-30 · Red Hat rating ImportantOpenShift Container Platform 4.21.22 bug fix and security update
- Red Hat OpenShift Container Platform 4.21 rhcos-aarch64-4.21.9.6.202606241859-0, rhcos-ppc64le-4.21.9.6.202606241859-0, rhcos-s390x-4.21.9.6.202606241859-0 +1
- RHSA-2026:28132 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux Server (v. 7 ELS) libsmbclient-4.10.16-26.el7_9.1, libsmbclient-4.10.16-26.el7_9.1.ppc, libwbclient-4.10.16-26.el7_9.1 +17
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) libsmbclient-devel-4.10.16-26.el7_9.1, libsmbclient-devel-4.10.16-26.el7_9.1.ppc, libwbclient-devel-4.10.16-26.el7_9.1 +14
- Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS) ctdb-4.10.16-26.el7_9.1, ctdb-tests-4.10.16-26.el7_9.1
- RHSA-2026:28053 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) samba-client-4.19.4-105.el9_4.4, samba-krb5-printing-4.19.4-105.el9_4.4, samba-vfs-iouring-4.19.4-105.el9_4.4 +3
- Red Hat Enterprise Linux BaseOS E4S (v.9.4) libnetapi-4.19.4-105.el9_4.4, libsmbclient-4.19.4-105.el9_4.4, libwbclient-4.19.4-105.el9_4.4 +15
- Red Hat Enterprise Linux Resilient Storage E4S (v.9.4) ctdb-4.19.4-105.el9_4.4
- RHSA-2026:28054 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) samba-client-4.17.5-105.el9_2.5, samba-krb5-printing-4.17.5-105.el9_2.5, samba-vfs-iouring-4.17.5-105.el9_2.5 +3
- Red Hat Enterprise Linux BaseOS E4S (v.9.2) libnetapi-4.17.5-105.el9_2.5, libsmbclient-4.17.5-105.el9_2.5, libwbclient-4.17.5-105.el9_2.5 +15
- Red Hat Enterprise Linux Resilient Storage E4S (v.9.2) ctdb-4.17.5-105.el9_2.5
- RHSA-2026:28055 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) samba-client-4.21.3-114.el10_0.1, samba-gpupdate-4.21.3-114.el10_0.1, samba-krb5-printing-4.21.3-114.el10_0.1 +4
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0) ldb-tools-4.21.3-114.el10_0.1, libldb-4.21.3-114.el10_0.1, libnetapi-4.21.3-114.el10_0.1 +18
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libldb-devel-4.21.3-114.el10_0.1, libnetapi-devel-4.21.3-114.el10_0.1, libsmbclient-devel-4.21.3-114.el10_0.1 +6
- RHSA-2026:28056 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) samba-vfs-iouring-4.17.5-7.el8_8.1
- Red Hat Enterprise Linux AppStream TUS (v.8.8) samba-vfs-iouring-4.17.5-7.el8_8.1
- Red Hat Enterprise Linux BaseOS E4S (v.8.8) ctdb-4.17.5-7.el8_8.1, libnetapi-4.17.5-7.el8_8.1, libsmbclient-4.17.5-7.el8_8.1 +25
- Red Hat Enterprise Linux BaseOS TUS (v.8.8) ctdb-4.17.5-7.el8_8.1, libnetapi-4.17.5-7.el8_8.1, libsmbclient-4.17.5-7.el8_8.1 +25
- RHSA-2026:28057 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) samba-vfs-iouring-4.15.5-16.el8_6.1
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) samba-vfs-iouring-4.15.5-16.el8_6.1
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) ctdb-4.15.5-16.el8_6.1, libsmbclient-4.15.5-16.el8_6.1, libwbclient-4.15.5-16.el8_6.1 +18
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) ctdb-4.15.5-16.el8_6.1, libsmbclient-4.15.5-16.el8_6.1, libwbclient-4.15.5-16.el8_6.1 +18
- RHSA-2026:28058 Released 2026-06-23 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) ctdb-4.13.3-12.el8_4.1, ctdb-tests-4.13.3-12.el8_4.1, libsmbclient-4.13.3-12.el8_4.1 +19
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) ctdb-4.13.3-12.el8_4.1, ctdb-tests-4.13.3-12.el8_4.1, libsmbclient-4.13.3-12.el8_4.1 +19
- RHSA-2026:25979 Released 2026-06-15 · Red Hat rating Importantsamba security update
- Red Hat CodeReady Linux Builder EUS (v.9.6) libldb-devel-4.21.3-14.el9_6.1, libnetapi-devel-4.21.3-14.el9_6.1, libsmbclient-devel-4.21.3-14.el9_6.1 +6
- Red Hat Enterprise Linux AppStream EUS (v.9.6) samba-client-4.21.3-14.el9_6.1, samba-gpupdate-4.21.3-14.el9_6.1, samba-krb5-printing-4.21.3-14.el9_6.1 +4
- Red Hat Enterprise Linux BaseOS EUS (v.9.6) ldb-tools-4.21.3-14.el9_6.1, libldb-4.21.3-14.el9_6.1, libnetapi-4.21.3-14.el9_6.1 +18
- Red Hat Enterprise Linux Resilient Storage EUS (v.9.6) ctdb-4.21.3-14.el9_6.1
- RHSA-2026:25049 Released 2026-06-10 · Red Hat rating Criticalsamba security update
- Red Hat Enterprise Linux AppStream (v. 9) samba-client-4.23.5-10.el9_8, samba-gpupdate-4.23.5-10.el9_8, samba-krb5-printing-4.23.5-10.el9_8 +4
- Red Hat Enterprise Linux BaseOS (v. 9) ldb-tools-4.23.5-10.el9_8, libldb-4.23.5-10.el9_8, libnetapi-4.23.5-10.el9_8 +18
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libldb-devel-4.23.5-10.el9_8, libnetapi-devel-4.23.5-10.el9_8, libsmbclient-devel-4.23.5-10.el9_8 +6
- Red Hat Enterprise Linux Resilient Storage (v. 9) ctdb-4.23.5-10.el9_8
- RHSA-2026:22963 Released 2026-06-03 · Red Hat rating Criticalsamba security update
- Red Hat Enterprise Linux AppStream (v. 10) samba-client-4.23.5-109.el10_2, samba-gpupdate-4.23.5-109.el10_2, samba-krb5-printing-4.23.5-109.el10_2 +4
- Red Hat Enterprise Linux BaseOS (v. 10) ldb-tools-4.23.5-109.el10_2, libldb-4.23.5-109.el10_2, libnetapi-4.23.5-109.el10_2 +18
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libldb-devel-4.23.5-109.el10_2, libnetapi-devel-4.23.5-109.el10_2, libsmbclient-devel-4.23.5-109.el10_2 +6
- RHSA-2026:22644 Released 2026-06-03 · Red Hat rating Importantsamba security update
- Red Hat Enterprise Linux AppStream (v. 8) samba-vfs-iouring-4.19.4-16.el8_10
- Red Hat Enterprise Linux BaseOS (v. 8) ctdb-4.19.4-16.el8_10, libnetapi-4.19.4-16.el8_10, libsmbclient-4.19.4-16.el8_10 +25
- Red Hat Enterprise Linux CRB (v. 8) libnetapi-devel-4.19.4-16.el8_10, libsmbclient-devel-4.19.4-16.el8_10, libwbclient-devel-4.19.4-16.el8_10 +2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:22644
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:22963
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
Show 10 more groups
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:25049
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:25979
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:28053
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:28054
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:28055
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:28056
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 23 more products — RHSA-2026:28057
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 20 more products — RHSA-2026:29863
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-02601 Samba: group policy certificate enrollment uses http:// without validationPriority LOW 36
- TI-2026-01597 Samba: missing access check on reparse point operationsPriority LOW 33
- TI-2026-01978 Samba: vfs_worm does not block directory modificationPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:28058
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:28132
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-03891 Samba: samba: remote code execution in printing subsystem via unescaped job descriptionPriority MEDIUM 58
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder EUS (v.9.6) | Fixed | RHSA-2026:25979 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:22963 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:22644 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:25049 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:28057 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:28056 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:28054 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:28053 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:28055 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:25979 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:28057 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:28056 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:22963 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:22644 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:25049 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2026:28058 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2026:28057 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.8) | Fixed | RHSA-2026:28056 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.2) | Fixed | RHSA-2026:28054 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.4) | Fixed | RHSA-2026:28053 |
| Red Hat Enterprise Linux BaseOS EUS (v. 10.0) | Fixed | RHSA-2026:28055 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.6) | Fixed | RHSA-2026:25979 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:28058 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:28057 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.8) | Fixed | RHSA-2026:28056 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2026:22644 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:22963 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:25049 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:28055 |
| Red Hat Enterprise Linux Resilient Storage (v. 9) | Fixed | RHSA-2026:25049 |
| Red Hat Enterprise Linux Resilient Storage E4S (v.9.2) | Fixed | RHSA-2026:28054 |
| Red Hat Enterprise Linux Resilient Storage E4S (v.9.4) | Fixed | RHSA-2026:28053 |
| Red Hat Enterprise Linux Resilient Storage EUS (v.9.6) | Fixed | RHSA-2026:25979 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:28132 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2026:28132 |
| Red Hat Enterprise Linux Server ResilientStorage (v. 7 ELS) | Fixed | RHSA-2026:28132 |
| Red Hat OpenShift Container Platform 4.12 | Fixed | RHSA-2026:59831 |
| Red Hat OpenShift Container Platform 4.13 | Fixed | RHSA-2026:65839 |
| Red Hat OpenShift Container Platform 4.14 | Fixed | RHSA-2026:56786 |
| Red Hat OpenShift Container Platform 4.15 | Fixed | RHSA-2026:56911 |
| Red Hat OpenShift Container Platform 4.16 | Fixed | RHSA-2026:56853 |
| Red Hat OpenShift Container Platform 4.17 | Fixed | RHSA-2026:60019 |
| Red Hat OpenShift Container Platform 4.18 | Fixed | RHSA-2026:57483 |
| Red Hat OpenShift Container Platform 4.19 | Fixed | RHSA-2026:29863 |
| Red Hat OpenShift Container Platform 4.20 | Fixed | RHSA-2026:29799 |
| Red Hat OpenShift Container Platform 4.21 | Fixed | RHSA-2026:29833 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4408
- 2026-10-03 Alias added: GHSA-jg8v-92xc-cx65
- 2026-10-08 Fix available: openshift/[email protected], openshift/[email protected], openshift/[email protected] +7 · CNA
- 2026-10-09 Affected versions changed · Red Hat
References
Advisory 24
- RHSA-2026:22644
- RHSA-2026:22963
- RHSA-2026:25049
- RHSA-2026:25979
- RHSA-2026:28053
- RHSA-2026:28054
- RHSA-2026:28055
- RHSA-2026:28056
- RHSA-2026:28057
- RHSA-2026:28058
- RHSA-2026:28132
- RHSA-2026:29799
- RHSA-2026:29833
- RHSA-2026:29863
- RHSA-2026:56786
- RHSA-2026:56853
- RHSA-2026:56911
- RHSA-2026:57483
- RHSA-2026:59831
- RHSA-2026:60019
- RHSA-2026:65839
- https://access.redhat.com/security/cve/CVE-2026-4408
- RHBZ#2479762
- https://bugzilla.samba.org/show_bug.cgi?id=16034
More Red Hat Enterprise Linux vulnerabilities
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
Sources
- CVE-2026-4408 · CVE Program
- CVE-2026-4408 · NVD
- FIRST EPSS
- GHSA-jg8v-92xc-cx65 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-4408 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences