🛡️ CVE-2023-31102 — 7-zip

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-191 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2023-31102 is classified as CWE-191: Integer Underflow. A subtraction drops below the minimum for the type and wraps, yielding an unexpectedly large value.

Affected software

CVE-2023-31102 is recorded against 3 packages.

  • 7-zip (fixed in 22.01)
  • active-iq-unified-manager
  • oncommand-workflow-automation

Timeline and source

Published on 3 November 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

ds-security.com
security.netapp.com
sourceforge.net
www.7-zip.org
www.zerodayinitiative.com
ds-security.com
security.netapp.com
sourceforge.net
www.7-zip.org
www.zerodayinitiative.com

CVE-2023-31102 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-191
Public Exploit ✅ No
Source NVD
Published 2023-11-03
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
7-zip — 22.01
active-iq-unified-manager — —
oncommand-workflow-automation — —

Similar Threats

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