CVE-2026-94285: CWE-125 Out-of-bounds read in x.org libX11
An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.
AI Analysis
Technical Summary
An out-of-bounds read exists in libX11's byte-oriented codeset parser in versions prior to 1.8.14. This vulnerability could be exploited by a malicious X server to crash attached X clients by triggering the out-of-bounds read condition. The issue is tracked as CWE-125 and affects libX11 versions >=0 and <1.8.14.
Potential Impact
The vulnerability allows a remote attacker controlling an X server to cause a denial of service by crashing X clients connected to that server. There is no indication of confidentiality or integrity impact, only availability is affected.
Mitigation Recommendations
Upgrade libX11 to version 1.8.14 or later where this vulnerability is fixed. No other mitigation or workaround is indicated. Patch status is not explicitly confirmed in the input, but the presence of a fixed version (1.8.14) implies an official fix is available.
CVE-2026-94285: CWE-125 Out-of-bounds read in x.org libX11
Description
An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.
CVSS v3.1
Score 5.1medium
Affected software
x.org
libX11
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
An out-of-bounds read exists in libX11's byte-oriented codeset parser in versions prior to 1.8.14. This vulnerability could be exploited by a malicious X server to crash attached X clients by triggering the out-of-bounds read condition. The issue is tracked as CWE-125 and affects libX11 versions >=0 and <1.8.14.
Potential Impact
The vulnerability allows a remote attacker controlling an X server to cause a denial of service by crashing X clients connected to that server. There is no indication of confidentiality or integrity impact, only availability is affected.
Mitigation Recommendations
Upgrade libX11 to version 1.8.14 or later where this vulnerability is fixed. No other mitigation or workaround is indicated. Patch status is not explicitly confirmed in the input, but the presence of a fixed version (1.8.14) implies an official fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- suse
- Date Reserved
- 2026-09-21T09:33:25.369Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aba2d57f7a7c5410670be84
Added to database: 09/28/2026, 09:03:19 UTC
Last enriched: 09/28/2026, 09:17:47 UTC
Last updated: 09/29/2026, 01:57:23 UTC
Views: 19
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