Disclosure summary
Null Pointer Dereference in SubtableUnicodesCache::create leading to DoS
Source-reported weakness categories
CWE-476
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 20, 2026
Null Pointer Dereference in SubtableUnicodesCache::create leading to DoS
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 5.3
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 harfbuzz 8.3.0-4 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 harfbuzz 8.3.0-3 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 8.3.0-4 · product IDs 20833-17084, 17496-17084
- Vendor guidance · product IDs 20833-17084, 17496-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-01-10T20:02:53-05:00
MODIFIED 2026-01-20T09:47:26-05:00
INGESTED 2026-10-08T12:45:21-04:00