CVE-2025-59375

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 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74	Product
https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes	Product
https://github.com/libexpat/libexpat/issues/1018	Exploit Issue Tracking
https://github.com/libexpat/libexpat/pull/1034	Issue Tracking
https://issues.oss-fuzz.com/issues/439133977	Exploit Issue Tracking
http://www.openwall.com/lists/oss-security/2025/09/16/2
http://www.openwall.com/lists/oss-security/2026/05/01/5
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-089022.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

History

19 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) libexpat en Expat anterior a 2.7.2 permite a los atacantes desencadenar grandes asignaciones de memoria dinámica a través de un documento pequeño que se envía para su análisis.

Information

Published : 2025-09-15 03:15

Updated : 2026-10-19 17:10

NVD link : CVE-2025-59375

Mitre link : CVE-2025-59375

CVE.ORG link : CVE-2025-59375

JSON object : View

Products Affected

libexpat_project

libexpat

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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