Description
A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that "[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all."
References (7)
Core 7
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.319228
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.319228
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.622285
Issue Tracking issue-tracking
https://gitlab.gnome.org/GNOME/libxml2/-/issues/958
Issue Tracking issue-tracking
https://gitlab.gnome.org/GNOME/libxml2/-/issues/958#note_2505853
Various Sources exploit
https://drive.google.com/file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view?usp=drive_link
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-253495.html
Scores
CVSS v3
3.3
EPSS
0.0014
EPSS Percentile
3.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-404
CWE-674
Status
published
Products (12)
None/libxml2
2.14.0
None/libxml2
2.14.1
None/libxml2
2.14.2
None/libxml2
2.14.3
None/libxml2
2.14.4
None/libxml2
2.14.5
n/a/libxml2
2.14.0
n/a/libxml2
2.14.1
n/a/libxml2
2.14.2
n/a/libxml2
2.14.3
... and 2 more
Published
Aug 08, 2025
Tracked Since
Feb 18, 2026