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Medium 4.0Published Apr 12, 2026

CVE-2026-40386In 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.

Updated under an hour ago ()

Does this affect you?

It affects libexif project libexif. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
4.0 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Weakness (CWE)
CWE-191
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
mitre
NVD analysis
Analyzed
Record last updated
Apr 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
libexif project libexif
libexif_project:libexif (from the name)
through 0.6.25
CNA record
libexif_project libexif
libexif_project:libexif
through 0.6.25
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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