CVE-2026-40385

Publication date 12 April 2026

Last updated 13 July 2026

Ubuntu priority

Cvss 3 Severity Score

Description

In libexif through 0.6.25, an unsigned 32bit integer overflow in Nikon MakerNote handling could be used by local attackers to cause crashes or information leaks. This only affects 32bit systems.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libexif	26.04 LTS resolute	Fixed 0.6.25-2ubuntu0.1
	25.10 questing	Ignored end of life, was needed
	24.04 LTS noble	Fixed 0.6.24-1ubuntu0.24.04.1
	22.04 LTS jammy	Fixed 0.6.24-1ubuntu0.22.04.1
	20.04 LTS focal	Vulnerable
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Vulnerable

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libexif	Upstream: 93003b9

Severity score breakdown

CVSS version: CVSS v3.0

Base score 4.0 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	4.0 · Medium
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-8531-1
libexif vulnerabilities
13 July 2026

Other references

https://www.cve.org/CVERecord?id=CVE-2026-40385