systemd-homed: local privilege escalation via missing home-record signature verification on the authenticate path
Priority LOW 30CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-269 and CWE-347.
Summary
systemd-homed contains a local privilege escalation bug via arbitrary system group addition to a local, logged in, homed-managed user
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00057 0th percentileScored 2026-11-07
Fix Partial systemd-homed (systemd): 262, 261.2, 260.4 +2Red Hat: 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| systemd | systemd-homed | 245 to before 262, 261.2, 260.4, 259.8, 258.10 | 262, 261.2, 260.4, 259.8, 258.10 | Patch available | CNA |
- systemd-homed Vendorsystemd Affected 245 to before 262, 261.2, 260.4, 259.8, 258.10 Fixed in 262, 261.2, 260.4, 259.8, 258.10 Patch available CNA
Remediation
- Fix · CNA systemd-homed (systemd) Fixed in 262, 261.2, 260.4, 259.8, 258.10
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
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 Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16742
- 2026-11-05 Affected versions changed · Red Hat
More systemd vulnerabilities
- 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-2026-12675 systemd-oomd: unprivileged users can terminate arbitrary processes CVSS 3.1MEDIUM 5.5
- 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
Sources
- CVE-2026-16742 · CVE Program
- CVE-2026-16742 · NVD
- FIRST EPSS
- CVE-2026-16742 · 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