CVE-2026-40026: The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the ISO9660 filesystem parser wh

Q: How do I fix CVE-2026-40026?

the sleuth kit: upgrade to 4.14.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-40026 being exploited?

CVE-2026-40026 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-40026 affect?

CVE-2026-40026 affects the sleuth kit. Severity is medium (CVSS 4.4). 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 wi

Q: How urgent is CVE-2026-40026?

Priority 16/100. No elevated risk signals yet.

Routine

MEDIUM 4.4UPGRADE

CVE-2026-40026 is a medium-severity flaw (CVSS 4.4) affecting the sleuth kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 trig

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-125
Published	2026-04-08
Last modified	2026-07-24

Publisher (CNA): VulnCheck · Vendor: sleuthkit

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-08 22:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

sleuthkit the sleuth kit UPGRADE

Affected: < 4.14.0

Fixed in: 4.14.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy the-sleuth-kit || rpm -q the-sleuth-kit || the-sleuth-kit --version

2. UPGRADE to 4.14.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade the-sleuth-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade the-sleuth-kit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-40026?

the sleuth kit: upgrade to 4.14.0. Exact commands for each OS are on this page.

Is CVE-2026-40026 being exploited?

CVE-2026-40026 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-40026 affect?

CVE-2026-40026 affects the sleuth kit. Severity is medium (CVSS 4.4). 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 wi

How urgent is CVE-2026-40026?

Priority 16/100. No elevated risk signals yet.

Related CVEs

CVE-2026-40024 HIGH 7.1 UPGRADE The Sleuth Kit through 4.14.0 contains a path traversal vulnerability in tsk_recover that allows an attacker t
CVE-2026-40025 MEDIUM 4.4 UPGRADE The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the APFS filesystem keybag parse

References

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