CVE-2026-40386: In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs.
Overview
- Severity
- Medium (CVSS 4)
- CVSS Vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Apr
- Released
- 2026-04-14
- Last Updated
- 2026-04-29
- EPSS Score
- 0.14% (percentile: 3.7%)
Affected Products (3)
Open Source Software
- azl3 libexif 0.6.24-2 on Azure Linux 3.0
- azl3 libexif 0.6.24-3 on Azure Linux 3.0
- cbl2 libexif 0.6.24-2 on CBL Mariner 2.0
Revision History
- 2026-04-14: Information published.
- 2026-04-14: Information published.
- 2026-04-15: Information published.
- 2026-04-15: Information published.
- 2026-04-29: Information published.