XDM in XFree86 3.3 and 3.3.3 generates easily guessable cookies using gettimeofday() when…
Priority LOW 38Published · 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
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
XDM in XFree86 3.3 and 3.3.3 generates easily guessable cookies using gettimeofday() when compiled with the HasXdmXauth option, which allows remote attackers to gain unauthorized access to the X display via a brute force attack.
Why it matters now
EPSS 0.02844 86th 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
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xfree86_project:x11r6:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Xfree86 Project |
| cpe:2.3:a:xfree86_project:x11r6:3.3.3:*:*:*:*:*:*:* | 3.3.3 | Vulnerable | Xfree86 Project |
- cpe:2.3:a:xfree86_project:x11r6:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Xfree86 Project
- cpe:2.3:a:xfree86_project:x11r6:3.3.3:*:*:*:*:*:*:* Versions 3.3.3 Vulnerable ·Xfree86 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-1086
- 2026-10-03 Alias added: GHSA-45vg-36w4-jh4r
References
—
More Xfree86 Project X11r6 vulnerabilities
- TI-2004-00071 Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the… CVSS 2.0HIGH 10.0
- TI-2004-00070 Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows… CVSS 2.0HIGH 10.0
- TI-2004-00826 Multiple vulnerabilities in libXpm for 6.8.1 and earlier, as used in XFree86 and other… CVSS 2.0HIGH 10.0
- TI-2002-01251 Buffer overflow in Dispatch() routine for XFS font server (fs.auto) on Solaris 2.5.1… CVSS 2.0HIGH 7.5
- TI-1999-00238 Guessable magic cookies in X Windows allows remote attackers to execute commands, e.g. CVSS 2.0HIGH 10.0
- TI-2002-01432 xdm, with the authComplain variable set to false, allows arbitrary attackers to connect… CVSS 2.0HIGH 10.0
Sources
- CVE-2001-1086 · CVE Program
- CVE-2001-1086 · NVD
- FIRST EPSS
- GHSA-45vg-36w4-jh4r · GitHub Advisory Database · CC BY 4.0
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