CVE-2025-53817

GHSL-2025-059 - 7-Zip - Null pointer array write attempt in NArchive::NCom::CHandler::GetStream

State: Published
Severity: 5.5 Medium
Published: Jul 17, 2025
Updated: Nov 4, 2025
Reserved: Jul 9, 2025

Description

7-Zip is a file archiver with a high compression ratio. 7-Zip supports extracting from Compound Documents. Prior to version 25.0.0, a null pointer dereference in the Compound handler may lead to denial of service. Version 25.0.0 contains a fix cor the issue.

Scores

CVSS	Score	Vector	Source
4.0	5.5 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
7-Zipipavlov	< 25.0.0Affected

References

https://securitylab.github.com/advisories/GHSL-2025-059_7-Zip/
https://www.openwall.com/lists/oss-security/2025/07/18/2
http://www.openwall.com/lists/oss-security/2025/07/18/2

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