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TI-1999-00519 Aliases CVE-1999-0526GHSA-fv34-2r8h-94mm

An X server's access control is disabled (e.g.

Priority MEDIUM 62Published · 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

An X server's access control is disabled (e.g. through an "xhost +" command) and allows anyone to connect to the server.

Why it matters now

EPSS 0.20817 97th 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:x.org:x11:7.1_1.1.0:*:*:*:*:*:*:*7.1_1.1.0Vulnerablex.org
  • cpe:2.3:a:x.org:x11:7.1_1.1.0:*:*:*:*:*:*:* Versions 7.1_1.1.0 Vulnerable ·x.org

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-1999-0526
  2. 2026-10-03 Alias added: GHSA-fv34-2r8h-94mm

References

Advisory 1

  • TI-2012-01891 Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11… 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
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences