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 without verifying that the source data falls within the parsed SUSP block. An attacker can craft a malicious ISO image that causes reads past the end of the SUSP data buffer, and a zero-length SUSP entry can trigger an infinite parsing loop.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (2.6th 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
- Sleuthkit The_sleuth_kit
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking, product, Issue Tracking)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (vendor-advisory, Third Party Advisory)
- disclosure@vulncheck.com (Third Party Advisory, 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.