libxml2 xmlcatalog xmlParseSGMLCatalog recursion
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
Summary
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."
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libxml2 | 2.14.0; 2.14.1; 2.14.2; 2.14.3; 2.14.4; 2.14.5 | — | No fix listed | CNA |
- libxml2 Vendor— Affected 2.14.0; 2.14.1; 2.14.2; 2.14.3; 2.14.4; 2.14.5 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* | before 2.15.2 | Vulnerable | xmlsoft |
| cpe:2.3:o:siemens:ruggedcom_rst2428p_firmware:*:*:*:*:*:*:*:* | before 4.0 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:ruggedcom_rst2428p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* | 4.1.0 to before 4.1.1.30 | Vulnerable | IBM |
| cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:* | 4.1.2.0 | Vulnerable | IBM |
| cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* | 7.2.5 to before 7.2.5.12; 7.3.2 to before 7.3.3.3 | Vulnerable | IBM |
| cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:* | 7.3.4 | Vulnerable | IBM |
- cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* Versions before 2.15.2 Vulnerable ·xmlsoft
- cpe:2.3:o:siemens:ruggedcom_rst2428p_firmware:*:*:*:*:*:*:*:* Versions before 4.0 Vulnerable ·Siemens
- cpe:2.3:h:siemens:ruggedcom_rst2428p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* Versions 4.1.0 to before 4.1.1.30 Vulnerable ·IBM
- cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:* Versions 4.1.2.0 Vulnerable ·IBM
- cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* Versions 7.2.5 to before 7.2.5.12; 7.3.2 to before 7.3.3.3 Vulnerable ·IBM
- cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:* Versions 7.3.4 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Core Services
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2025-8732
- 2026-10-03 Alias added: GHSA-vr42-4x2q-392x
References
Sources
- CVE-2025-8732 · CVE Program
- CVE-2025-8732 · NVD
- FIRST EPSS
- GHSA-vr42-4x2q-392x · GitHub Advisory Database · CC BY 4.0
- CVE-2025-8732 · Red Hat security data · CC BY 4.0
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