CVE-2026-40026

Memory disclosure and hang via unchecked SUSP lengths

Published Apr 8, 2026 · Updated Apr 8, 2026

Out-of-bounds reads in The Sleuth Kit through 4.14.0 allow attackers to disclose process memory or hang analysis via a crafted ISO image. The ISO9660 parse_susp() function copies Extension Reference strings using image-supplied len_id, len_des, and len_src values without confirming each source range remains inside the parsed SUSP block, while a zero-length entry prevents parser advancement. Exploitation requires a user or consuming application to analyze the malicious image; the grounded effects are out-of-range memory reads and an infinite parsing loop, not data modification or code execution.

CVSS severity4.8
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Out-of-bounds reads in The Sleuth Kit through 4.14.0 allow attackers to disclose process memory or hang analysis via a crafted ISO image. The ISO9660 parse_susp() function copies Extension Reference strings using image-supplied len_id, len_des, and len_src values without confirming each source range remains inside the parsed SUSP block, while a zero-length entry prevents parser advancement. Exploitation requires a user or consuming application to analyze the malicious image; the grounded effects are out-of-range memory reads and an infinite parsing loop, not data modification or code execution.

The record

CVE
CVE-2026-40026
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
Sleuth Kit Labs
Product
The Sleuth Kit
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.14.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Sleuth Kit Labs · The Sleuth Kitversion=0 <=4.14.0

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
7.1NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
4.4VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo