Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11…
Priority MEDIUM 48CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibly execute arbitrary code via format string specifiers in an input device name.
Why it matters now
EPSS 0.02659 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2012-2118
- 2026-10-03 Alias added: GHSA-wqgf-h892-f3cp
References
More x.org X11 vulnerabilities
- TI-1999-00519 An X server's access control is disabled (e.g. CVSS 2.0HIGH 10.0
- TI-2007-00971 Integer overflow in ALLOCATE_LOCAL in the ProcXCMiscGetXIDList function in the XC-MISC… CVSS 2.0HIGH 9.0
- TI-2013-06091 Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in… CVSS 2.0HIGH 7.5
- TI-2014-06715 The GLX extension in XFree86 4.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org… CVSS 2.0MEDIUM 6.5
- TI-2014-06719 The SProcXFixesSelectSelectionInput function in the XFixes extension in X.Org X Window… CVSS 2.0MEDIUM 6.5
- TI-2014-06718 The RandR extension in XFree86 4.2.0, X.Org X Window System (aka X11 or X) X11R6.7, and… CVSS 2.0MEDIUM 6.5
Sources
- CVE-2012-2118 · CVE Program
- CVE-2012-2118 · NVD
- FIRST EPSS
- GHSA-wqgf-h892-f3cp · GitHub Advisory Database · CC BY 4.0
- CVE-2012-2118 · Red Hat security data · CC BY 4.0
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