Disclosure summary
Libsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication
Source-reported weakness categories
CWE-121
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) · 2026-Jan
Open original source · Updated Jan 12, 2026
Libsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.5
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 libsoup 3.4.4-11 on Azure Linux 3.0 | (MSRC status code 3) |
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-01-10T20:05:19-05:00
MODIFIED 2026-01-12T20:45:18-05:00
INGESTED 2026-10-08T12:45:23-04:00