Information disclosure in Samba
Priority LOW 22CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.
Why it matters now
EPSS 0.01088 65th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Samba | All versions of Samba prior to 4.15.5 | — | No fix listed | CNA |
- Samba Vendor— Affected All versions of Samba prior to 4.15.5 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | before 4.15.5 | Vulnerable | Samba |
| cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Red Hat |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions before 4.15.5 Vulnerable ·Samba
- cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
Remediation
Red Hat 2 advisories
- RHSA-2022:2074 Released 2022-05-10 · Red Hat rating Moderatesamba security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) samba-vfs-iouring-4.15.5-5.el8
- Red Hat Enterprise Linux BaseOS (v. 8) ctdb-4.15.5-5.el8, libsmbclient-4.15.5-5.el8, libwbclient-4.15.5-5.el8 +18
- Red Hat Enterprise Linux CRB (v. 8) libsmbclient-devel-4.15.5-5.el8, libwbclient-devel-4.15.5-5.el8, samba-devel-4.15.5-5.el8
- RHSA-2022:1756 Released 2022-05-10 · Red Hat rating Moderatesamba security, bug fix and enhancement update
- Red Hat Gluster 3.5 Samba on RHEL-8 ctdb-4.15.5-100.el8rhgs, libsmbclient-4.15.5-100.el8rhgs, libsmbclient-devel-4.15.5-100.el8rhgs +18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:2074 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2022:2074 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2022:2074 |
| Red Hat Gluster 3.5 Samba on RHEL-8 | Fixed | RHSA-2022:1756 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 9
- Red Hat Gluster 3.5 Samba on RHEL-8
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44141
- 2026-10-03 Alias added: GHSA-fmfh-pcgm-2499
References
Sources
- CVE-2021-44141 · CVE Program
- CVE-2021-44141 · NVD
- FIRST EPSS
- GHSA-fmfh-pcgm-2499 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-44141 · 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