CVE-2025-8732
libxml2 xmlcatalog xmlParseSGMLCatalog recursion
Reported by vuldb · Published August 8, 2025
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."
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| libxml2 | Amazon Linux | 2.10.4-1.amzn2023.0.15, 2.9.1-6.amzn2.5.21 |
| libxml2-devel | Amazon Linux | 2.9.1-6.amzn2.5.21 |
| libxml2-static | Amazon Linux | 2.10.4-1.amzn2023.0.15 |
| python3-libxml2 | Amazon Linux | 2.10.4-1.amzn2023.0.15 |
| RUGGEDCOM RST2428P | Siemens | 4.0 |
| ruggedcom_rst2428p_firmware | siemens | 4.0 |
| libxml2 | xmlsoft | 2.15.2 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | libxml2 | 2.14.0, 2.14.1, 2.14.2 |
| Siemens | RUGGEDCOM RST2428P | 0 |
| amazon:2023 | libxml2 | 0 |
| amazon:2 | libxml2 | 0 |
| amazon:2 | libxml2-devel | 0 |
| amazon:2023 | libxml2-static | 0 |
| amazon:2023 | python3-libxml2 | 0 |
| n/a | libxml2 | 2.14.0, 2.14.5, 2.14.3 |
| amazon:2 | libxml2-static | 0 |
| amazon:2023 | libxml2-devel | 0 |
| amazon:2 | libxml2-python | 0 |
Timeline
- Aug 8, 2025 CVE Published
- Aug 9, 2025 EPSS Score (30 in total, the first dated here)
- Mar 26, 2026 Coalition ESS Score (2 in total, the first dated here)
- Jun 2, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2025-8732
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References
- VDB-319228 | libxml2 xmlcatalog xmlParseSGMLCatalog recursion vdb-entrytechnical-description
- VDB-319228 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
- Submit #622285 | LibXML2 xmlcatalog the newest master stack overflow third-party-advisory
- issue-tracking
- issue-tracking
- exploit
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html url