Vulnerability in Libexpat Project
CVE-2026-32777
libexpat before 2.7.5 allows an infinite loop while parsing DTD content.
EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Libexpat Project — versions 0
- Libexpat_project Libexpat
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Issue Tracking)
- cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)
- cve@mitre.org (Patch, Issue Tracking)
- cve@mitre.org (Permissions Required)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2026-32777?
- CVE-2026-32777 is a medium-severity vulnerability in Libexpat Project, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 4.0/10. Published 2026-03-16.
- How severe is CVE-2026-32777?
- Medium severity. CVSS v3 base score is 4.0 out of 10.