Disclosure summary
Libxslt: heap use-after-free in libxslt caused by atype corruption in xmlattrptr
Source-reported weakness categories
CWE-416
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2025-Jul
Open original source · Updated Sep 24, 2026
Libxslt: heap use-after-free in libxslt caused by atype corruption in xmlattrptr
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.8
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 libxslt 1.1.34-8 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libxslt 1.1.43-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libxslt 1.1.43-3 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libxslt 1.1.34-10 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libxml2 2.11.5-8 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libxslt 1.1.34-9 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libxml2 2.11.5-7 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Release Notes · product IDs 20726-17084
- Vendor guidance · product IDs 20726-17084
- CBL-Mariner Releases · build 2.11.5-8 · product IDs 20825-17084, 20622-17084
- Vendor guidance · product IDs 20825-17084, 20622-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2025-09-03T22:04:37-04:00
MODIFIED 2026-09-24T22:39:48-04:00
INGESTED 2026-10-08T12:45:47-04:00