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.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.4 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/libexif/libexif/commit/dc6eac6e9655d14d0779d99e82d0f5f442d2f34b	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-12 19:16

Updated : 2026-06-17 10:45

NVD link : CVE-2026-40386

Mitre link : CVE-2026-40386

CVE.ORG link : CVE-2026-40386

JSON object : View

Products Affected

libexif_project

libexif

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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