CVE-2026-32778: CWE-476 NULL Pointer Dereference in libexpat project libexpat
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
AI Analysis
Technical Summary
CVE-2026-32778 is a low severity vulnerability in the libexpat XML parsing library prior to version 2.7.5. It involves a NULL pointer dereference in the setContext function that occurs on retry after an out-of-memory condition. This flaw can lead to application crashes, resulting in denial of service. There is no indication of confidentiality or integrity impact. No exploits in the wild are known, and no patch information is provided in the data.
Potential Impact
The vulnerability can cause a denial of service by crashing applications using libexpat when the setContext function dereferences a NULL pointer after an out-of-memory retry. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should monitor vendor communications for updates. No specific workaround or mitigation is provided in the available data.
CVE-2026-32778: CWE-476 NULL Pointer Dereference in libexpat project libexpat
Description
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
CVSS v3.1
Score 2.9low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-32778 is a low severity vulnerability in the libexpat XML parsing library prior to version 2.7.5. It involves a NULL pointer dereference in the setContext function that occurs on retry after an out-of-memory condition. This flaw can lead to application crashes, resulting in denial of service. There is no indication of confidentiality or integrity impact. No exploits in the wild are known, and no patch information is provided in the data.
Potential Impact
The vulnerability can cause a denial of service by crashing applications using libexpat when the setContext function dereferences a NULL pointer after an out-of-memory retry. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should monitor vendor communications for updates. No specific workaround or mitigation is provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-03-16T07:02:33.921Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69b7af5b9d4df4518329b03d
Added to database: 03/16/2026, 07:20:59 UTC
Last enriched: 07/15/2026, 11:22:59 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 182
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