What is CVE-2026-40026?

CVE-2026-40026 is a medium-severity vulnerability in Sleuthkit, classified under Out-of-bounds Read. CVSS score: 4.4/10. Published 2026-04-08.

How severe is CVE-2026-40026?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Out-of-bounds Read in Sleuthkit

CVE-2026-40026

The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the ISO9660 filesystem parser where the parse_susp() function trusts len_id, len_des, and len_src fields from the disk image to memcpy data into a stack buffer w…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (2.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.

Affected products

Sleuthkit — versions 0, a95b0ac21733b059a517aaefa667a17e1bcbdee1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Pull Request (product)
Patch Commit (patch)
Mobasi Sentinel Vulnerability Index (vendor-advisory)
VulnCheck Advisory: Sleuth Kit ISO9660 SUSP Extension Reference Out-of-Bounds Read (third-party-advisory)

Frequently asked questions

What is CVE-2026-40026?: CVE-2026-40026 is a medium-severity vulnerability in Sleuthkit, classified under Out-of-bounds Read. CVSS score: 4.4/10. Published 2026-04-08.
How severe is CVE-2026-40026?: Medium severity. CVSS v3 base score is 4.4 out of 10.