Null Pointer Dereference in 7-Zip's Compound Document Handler
CVE-2025-53817

5.5MEDIUM

Key Information:

Vendor

Ipavlov

Status
7-zip
Vendor
CVE Published:
17 July 2025

What is CVE-2025-53817?

7-Zip, a widely used file archiver known for its high compression efficiency, is susceptible to a null pointer dereference in its Compound Document handler. This issue, present in all versions before 25.0.0, may result in a denial of service, potentially disrupting user access to files. Users are advised to upgrade to version 25.0.0 or above to mitigate this vulnerability and ensure the security and stability of their file management operations.

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Affected Version(s)

7-Zip < 25.0.0

References

https://securitylab.github.com/advisories/GHSL-2025-059_7...
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https://www.openwall.com/lists/oss-security/2025/07/18/2
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CVSS V4

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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