CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/libexpat/libexpat/pull/1158	Issue Tracking Patch
https://github.com/libexpat/libexpat/pull/1159	Issue Tracking Patch
https://cert-portal.siemens.com/productcert/html/ssa-082556.html

Configurations

Configuration 1 (hide)

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

History

14 Jul 2026, 13:18

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-082556.html -

17 Jun 2026, 10:36

Type	Values Removed	Values Added
Summary		(es) libexpat antes de 2.7.5 permite una desreferencia de puntero NULL con contenido de entidad de parámetro externo vacío.

17 Mar 2026, 15:52

Type	Values Removed	Values Added
First Time		Libexpat Project libexpat Libexpat Project
CPE		cpe:2.3:a:libexpat_project:libexpat::::::::
References	~~() https://github.com/libexpat/libexpat/pull/1158 -~~	() https://github.com/libexpat/libexpat/pull/1158 - Issue Tracking, Patch
References	~~() https://github.com/libexpat/libexpat/pull/1159 -~~	() https://github.com/libexpat/libexpat/pull/1159 - Issue Tracking, Patch

16 Mar 2026, 14:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-16 14:19

Updated : 2026-07-14 13:18

NVD link : CVE-2026-32776

Mitre link : CVE-2026-32776

CVE.ORG link : CVE-2026-32776

JSON object : View

Products Affected

libexpat_project

libexpat

CWE

CWE-476

NULL Pointer Dereference

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