CVE-2025-53817

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

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.

Category

5.5
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.01%
Third-Party Advisory github.com
Affected: ipavlov 7-Zip
Published at:
Updated at:

References

Link Tags
https://securitylab.github.com/advisories/GHSL-2025-059_7-Zip/ third party advisory exploit
https://www.openwall.com/lists/oss-security/2025/07/18/2 mailing list exploit

Frequently Asked Questions

What is the severity of CVE-2025-53817?
CVE-2025-53817 has been scored as a medium severity vulnerability.
How to fix CVE-2025-53817?
To fix CVE-2025-53817, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53817 being actively exploited in the wild?
It is possible that CVE-2025-53817 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53817?
CVE-2025-53817 affects ipavlov 7-Zip.
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