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TI-2026-29030 Aliases CVE-2026-40225GHSA-396h-m3pm-fpm5

In udev in systemd before 260, local root execution can occur via malicious hardware…

Priority LOW 29CWE-669Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0015 4th percentileScored 2026-11-07
Fix Partial systemd (systemd): 260Red Hat: 1 advisoryRed Hat: 1 fixed, 2 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

VendorProductAffected versionsFixed inStatusSource
systemdsystemdbefore 260260Patch availableCNA
  • systemd Vendorsystemd Affected before 260 Fixed in 260 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*before 257.13; 258 to before 258.7; 259 to before 259.5Vulnerablesystemd
  • cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* Versions before 257.13; 258 to before 258.7; 259 to before 259.5 Vulnerable ·systemd

Remediation

  • Fix · CNA systemd (systemd) Fixed in 260

Red Hat 1 advisory

  • RHSA-2026:7299 Released 2026-04-09 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images systemd-260.1-2.1.hum1@aarch64, systemd-260.1-2.1.hum1@src, systemd-260.1-2.1.hum1@x86_64 +40

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    systemd 260

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-29031 In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.Priority MEDIUM 64
    • TI-2026-29029 Incorrect authorization in systemdPriority LOW 33
    • TI-2026-29028 In systemd 258 before 260, a local unprivileged user can trigger an assert when a…Priority LOW 23

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat Hardened ImagesFixed RHSA-2026:7299
Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40225
  2. 2026-10-03 Alias added: GHSA-396h-m3pm-fpm5

References

  • TI-2023-11736 systemd before 247 does not adequately block local privilege escalation for some Sudo… CVSS 3.1HIGH 7.8
  • TI-2017-06857 In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can… CVSS 3.1HIGH 7.5
  • TI-2026-29031 In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file. CVSS 3.1MEDIUM 6.4
  • TI-2022-04038 Information disclosure in systemd CVSS 3.1MEDIUM 5.5
  • TI-2025-04111 Systemd-coredump: race condition that allows a local attacker to crash a suid program and… CVSS 3.1MEDIUM 4.7
  • TI-2017-11647 In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS… CVSS 3.1HIGH 7.5
See all 54 →

Sources