CVE-2026-32778 — NULL Pointer Dereference in Project Libexpat

CWE-476 — NULL Pointer Dereference8 documents8 sources
Severity
5.5MEDIUMNVD
CNA2.9
EPSS
0.0%
top 97.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Libexpat Project Libexpat
Timeline
PublishedMar 16

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5libexpat_project/libexpat< 2.7.5

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-hx82-g397-5ggr: libexpat before 2↗2026-03-16
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CVEList
CVE-2026-32778: libexpat before 2↗2026-03-16
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OSV
CVE-2026-32778: libexpat before 2↗2026-03-16
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📋Vendor Advisories

3
Red Hat
libexpat: libexpat: Denial of Service via NULL pointer dereference after out-of-memory condition↗2026-03-16
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Microsoft
CVE-2026-32778: Mariner: Mariner mitre: mitre Customer Action Required: Yes↗2026-03-10
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Debian
CVE-2026-32778: expat - libexpat before 2.7.5 allows a NULL pointer dereference in the function setConte...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-32778 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-32778 — NULL Pointer Dereference | cvebase