Bug 2457689 (CVE-2026-40386) - CVE-2026-40386 libexif: libexif: Denial of Service and information disclosure via integer underflow in MakerNote decoding
Summary: CVE-2026-40386 libexif: libexif: Denial of Service and information disclosure...
Keywords:
Status: NEW
Alias: CVE-2026-40386
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2457746
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-12 19:01 UTC by OSIDB Bzimport
Modified: 2026-04-13 05:39 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-04-12 19:01:21 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.