CVE-2025-66293: LIBPNG has an out-of-bounds read in png_image_read_composite

Overview

Severity

High (CVSS 7.1)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2025-Dec

Released

2025-12-05

Last Updated

2026-01-08

EPSS Score

0.12% (percentile: 30.4%)

Affected Products (8)

Other

• 20684-17086
• 20674-17084
• 19626-17084
• 16848-17084
• 18434-17086

Mariner

• azl3 tensorflow 2.16.1-9 on Azure Linux 3.0

Open Source Software

• cbl2 qt5-qtbase 5.12.11-18 on CBL Mariner 2.0
• cbl2 tensorflow 2.11.1-2 on CBL Mariner 2.0

Revision History

• 2025-12-05: Information published.
• 2025-12-06: Information published.
• 2025-12-06: Information published.
• 2025-12-07: Information published.
• 2025-12-08: Information published.
• 2025-12-09: Information published.
• 2025-12-17: Information published.
• 2026-01-08: Information published.