Description
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
Affected products
libexpat_project: libexpat; debian: debian linux; fedoraproject: fedora
References10
- github.com/libexpat/libexpat/pull/629 Issue TrackingPatchThird Party Advisory
- github.com/libexpat/libexpat/pull/640 Issue TrackingPatchThird Party Advisory
- github.com/libexpat/libexpat/pull/629 Issue TrackingPatchThird Party Advisory
- github.com/libexpat/libexpat/pull/640 Issue TrackingPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/09/msg00029.html Issue TrackingThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
Metrics
- CVSS 3.1
-
8.1
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 2% percentile: 84 · as of 12 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
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