CVE-2025-66293
7.1
HIGH
CVSS 3.1
EPSS 0.14%
Description
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.
How to fix CVE-2025-66293
To remediate CVE-2025-66293, upgrade the affected package to a fixed version below.
- —upgrade to 1.6.53-r0 or later
- —upgrade to 1.6.37-3+deb11u1 or later
Is CVE-2025-66293 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.6.53-r0
- from 0, < 1.6.37-3+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H |