🛡️ UBUNTU-CVE-2025-6491
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-07-13
Updated 2026-06-02
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
php5
php7.0 7.0.33-0ubuntu0.16.04.16+esm16
php7.2 7.2.24-0ubuntu0.18.04.17+esm9
php7.4 7.4.3-4ubuntu2.29+esm1
php8.1 8.1.2-1ubuntu2.22
php8.3 8.3.6-0ubuntu0.24.04.5
php8.4 8.4.11-1ubuntu1

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