VDB
DEBIAN-CVE-2025-64720
DEBIAN-CVE-2025-64720
PUBLISHED
CVSS 7.099999904632568 HIGH
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | libpng1.6 | 1.6.48-1, 1.6.49-1, 1.6.50-1 |
| Debian:12 | libpng1.6 | 0, 1.6.39-2, 0 |
| Debian:13 | libpng1.6 | 0, 1.6.48-1, 0 |
| Debian:11 | libpng1.6 | 0, 1.6.37-3, 0 |
Timeline
- Nov 25, 2025 CVE Published
- Apr 28, 2026 CVE Updated