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CVE-2026-32777

MEDIUM CVSS 3.1: 5.5 EPSS 0.01%
Updated Mar 17, 2026
Libexpat Project
Parameter Value
CVSS 5.5 (MEDIUM)
Affected Versions before 2.7.5
Fixed In 2.7.5
Type CWE-835
Vendor Libexpat Project
Public PoC No

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

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Libexpat_Project Libexpat
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
2.7.5