CVE-2026-32777

low-risk
Published 2026-03-16

libexpat before 2.7.5 allows an infinite loop while parsing DTD content.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low 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
4
CVSS 4.0/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Libexpat Project

References (4)

Exploit https://github.com/libexpat/libexpat/issues/1161
Issue Tracking https://github.com/libexpat/libexpat/pull/1159
Issue Tracking https://github.com/libexpat/libexpat/pull/1162
Permissions Required https://issues.oss-fuzz.com/issues/486993411
19
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal