Disclosure summary
LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE`
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) · 2026-Mar
Open original source · Updated Apr 14, 2026
LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE`
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 libpng 1.6.55-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libpng 1.6.55-1 on CBL Mariner 2.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 1.6.56-1 · product IDs 21040-17084, 21053-17086
- Vendor guidance · product IDs 21040-17084, 21053-17086
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-03-28T21:02:12-04:00
MODIFIED 2026-04-14T21:38:06-04:00
INGESTED 2026-10-08T12:45:09-04:00