What’s Vulnerable › Vulnerabilities

CVE-2026-40026: Sleuth Kit ISO9660 SUSP Extension Reference Out-of-Bounds Read

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-08 · updated 2026-07-24
• Weakness: CWE-125

Description

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.

Affected products

• sleuthkit: before 4.14.0 — fixed in 4.14.0

How to fix

Upgrade to a fixed version: sleuthkit 4.14.0. Check the vendor advisory for mitigations.

References

• https://github.com/sleuthkit/sleuthkit/commit/a95b0ac21733b059a517aaefa667a17e1bcbdee1
• https://github.com/sleuthkit/sleuthkit/pull/3445
• https://mobasi.ai/sentinel
• https://www.vulncheck.com/advisories/sleuth-kit-iso9660-susp-extension-reference-out-of-bounds-read

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