CVE-2025-7424

Libxslt: type confusion in xmlnode.psvi between stylesheet and source nodes

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations. This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.

Ivan Fratric discovered that Libxslt was vulnerable to type confusion when performing XML transformations. An attacker could possibly use this issue to cause Libxslt to crash or corrupt memory, causing a denial of service or undefined behavior.

*Credits: Red Hat would like to thank Ivan Fratric (Google Project Zero) for reporting this issue.

CVSS Scores

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-07-10 CVE Reserved
2025-07-10 CVE Published
2026-04-27 CVE Updated
2026-05-06 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (5)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2025-7424	Vdb Entry
https://bugzilla.redhat.com/show_bug.cgi?id=2379228	Issue Tracking
https://gitlab.gnome.org/GNOME/libxslt/-/issues/139

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHBA-2025:12345	2026-04-27
https://access.redhat.com/errata/RHSA-2026:11015	2026-04-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
GNOME Search vendor "GNOME"		Libxslt Search vendor "GNOME" for product "Libxslt"				< 1.1.44 Search vendor "GNOME" for product "Libxslt" and version " < 1.1.44"		en		Affected