CVE-2025-59375

HIGH

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 9/15/2025Modified: 10/19/2026

Related Intelligence (0)

No articles currently reference this CVE.

References (9)

https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74Producthttps://github.com/libexpat/libexpat/blob/R_2_7_2/expat/ChangesProducthttps://github.com/libexpat/libexpat/issues/1018ExploitIssue Trackinghttps://github.com/libexpat/libexpat/pull/1034Issue Trackinghttps://issues.oss-fuzz.com/issues/439133977ExploitIssue Trackinghttp://www.openwall.com/lists/oss-security/2025/09/16/2http://www.openwall.com/lists/oss-security/2026/05/01/5https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-089022.html