Vulnerability in Libexpat Project
CVE-2025-66382
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
EPSS: 0.000 (1.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/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 (Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2025-66382?
- CVE-2025-66382 is a low-severity vulnerability in Libexpat Project, classified under Inefficient Algorithmic Complexity. CVSS score: 2.9/10. Published 2025-11-28.
- How severe is CVE-2025-66382?
- Low severity. CVSS v3 base score is 2.9 out of 10.