What is CVE-2025-8732?

CVE-2025-8732 is a low-severity vulnerability in IBM Aix, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2025-08-08.

How severe is CVE-2025-8732?

Low severity. CVSS v3 base score is 3.3 out of 10.

Is CVE-2025-8732 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in IBM Aix

CVE-2025-8732

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."

Published 2025-08-08 · last modified 2026-07-01.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (11.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

IBM Aix — versions 7.3.4
IBM Vios — versions 4.1.2.0
Siemens Ruggedcom Rst2428p
Siemens Ruggedcom Rst2428p Firmware
Xmlsoft Libxml2
Libxml2 — versions 2.14.0, 2.14.1, 2.14.2

Weakness classification (CWE)

Public proof-of-concept exploits

References

vuldb.com/ (Permissions Required, technical-description, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
vuldb.com/ (Permissions Required, Third Party Advisory, third-party-advisory)
gitlab.gnome.org/GNOME/libxml2/-/issues/958 (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
gitlab.gnome.org/GNOME/libxml2/-/issues/958 (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
drive.google.com/file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view (exploit, Broken Link)
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e (Third Party Advisory)

Frequently asked questions

What is CVE-2025-8732?: CVE-2025-8732 is a low-severity vulnerability in IBM Aix, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2025-08-08.
How severe is CVE-2025-8732?: Low severity. CVSS v3 base score is 3.3 out of 10.
Is CVE-2025-8732 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.