Cyber Resilience

CVE-2025-53817

MediumPublic PoC

Published: 17 July 2025

Published
17 July 2025
Modified
04 November 2025
KEV Added
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Patch
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CVSS Score v4 5.5 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0037 59.1th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-53817 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in 7-Zip 7-Zip. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 40.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

the issue.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

7-zip
7-zip
≤ 25.00

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References