Use After Free in Xmlsoft Libxml2

CVE-2022-49043

xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a use-after-free.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (17.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-49043: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-49043?
CVE-2022-49043 is a high-severity vulnerability in Xmlsoft Libxml2, classified under Use After Free. CVSS score: 8.1/10. Published 2025-01-26.
How severe is CVE-2022-49043?
High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2022-49043 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.