CVE-2026-93544: CWE-125 Out-of-bounds read in x.org libXi
An out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing prior to version 1.8.4. A malicious X server can exploit this flaw to crash an X client connected to it by sending crafted replies that trigger the out-of-bounds read. The issue affects libXi versions from 0 up to but not including 1.8.4.
Potential Impact
Exploitation of this vulnerability can cause an X client to crash, resulting in denial of service. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade libXi to version 1.8.4 or later where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
CVE-2026-93544: CWE-125 Out-of-bounds read in x.org libXi
Description
An out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.
CVSS v3.1
Score 6.5medium
Affected software
x.org
libXi
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing prior to version 1.8.4. A malicious X server can exploit this flaw to crash an X client connected to it by sending crafted replies that trigger the out-of-bounds read. The issue affects libXi versions from 0 up to but not including 1.8.4.
Potential Impact
Exploitation of this vulnerability can cause an X client to crash, resulting in denial of service. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade libXi to version 1.8.4 or later where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- suse
- Date Reserved
- 2026-09-18T09:08:10.295Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab550d3f7a7c541068cffc5
Added to database: 09/24/2026, 16:33:23 UTC
Last enriched: 09/24/2026, 16:50:18 UTC
Last updated: 09/25/2026, 01:56:00 UTC
Views: 7
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