CVE-2026-40386
Medium
Description
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.
SeverityMedium
CVSS4.0
Exploit probability—
ProductLibexif
PublishedApr 12, 2026
First seenApr 12, 2026
Weakness typeCWE-191CWE-191
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libexif_project libexif | v ≤ 0.6.25 | — |
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