What’s Vulnerable › Vulnerabilities

CVE-2023-31102

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 54.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-03 · updated 2026-06-17
• Weakness: CWE-191

Description

Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.

Affected products

• 7-Zip: before 22.01 — fixed in 22.01
• Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
• NetApp OnCommand Workflow Automation: all versions

How to fix

Upgrade to a fixed version: 7-Zip 22.01. Check the vendor advisory for mitigations.

References

• https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/
• https://security.netapp.com/advisory/ntap-20231110-0007/
• https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/
• https://www.7-zip.org/download.html
• https://www.zerodayinitiative.com/advisories/ZDI-23-1165/
• https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/
• https://security.netapp.com/advisory/ntap-20231110-0007/
• https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/
• https://www.7-zip.org/download.html
• https://www.zerodayinitiative.com/advisories/ZDI-23-1165/

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