Vulnerability in Libexpat Project

CVE-2022-25313

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

EPSS: 0.033 (87.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-25313?
CVE-2022-25313 is a medium-severity vulnerability in Libexpat Project, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2022-02-18.
How severe is CVE-2022-25313?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-25313 known to be exploited?
19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.