CVE-2022-40674

moderate-risk

Published 2022-09-14

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

Do I need to act?

1.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.1/10 High

NETWORK / HIGH complexity

Libexpat

Debian Linux

Fedora

Debian Fedoraproject Libexpat Project

Issue Tracking https://github.com/libexpat/libexpat/pull/629

Issue Tracking https://github.com/libexpat/libexpat/pull/640

Issue Tracking https://lists.debian.org/debian-lts-announce/2022/09/msg00029.html

Third Party Advisory https://security.gentoo.org/glsa/202209-24

Third Party Advisory https://security.gentoo.org/glsa/202211-06

Third Party Advisory https://security.netapp.com/advisory/ntap-20221028-0008/

Third Party Advisory https://www.debian.org/security/2022/dsa-5236

Issue Tracking https://github.com/libexpat/libexpat/pull/629

Issue Tracking https://github.com/libexpat/libexpat/pull/640

Issue Tracking https://lists.debian.org/debian-lts-announce/2022/09/msg00029.html

and 4 more references

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 3/34 · Minimal

Exposure 13/34 · Low