Which products and versions are affected by CVE-2023-31102?

Affected: 7-Zip; Active Iq Unified Manager (Netapp); Oncommand Workflow Automation (Netapp), among others. The full list is in the CVE brief.

Is CVE-2023-31102 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2023-31102 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2023-31102?

Public exploit code is available.

Is there a fix for CVE-2023-31102?

Fixed versions are available, including 7-Zip 22.01, 7zip 22.01+really25.01+dfsg-0+deb12u1, 7zip 23.01+dfsg-1.

How urgently should CVE-2023-31102 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2023-31102

HighPublic exploit

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

Published Nov 3, 2023 · Updated Aug 7, 2026 · Also known as DEBIAN-CVE-2023-31102, UBUNTU-CVE-2023-31102

Key Facts

Patch immediately

CVE-2023-31102 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting 7-Zip, Active Iq Unified Manager (Netapp), Oncommand Workflow Automation (Netapp) and 2 more products.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 55% probability of exploitation in the next 30 days.
Fixed versions are available, including 7-Zip 22.01, 7zip 22.01+really25.01+dfsg-0+deb12u1, 7zip 23.01+dfsg-1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.8

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

55%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2023-31102 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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

Affected Products

21 affected entries in total

Product	Affected versions	Fixed in
7-Zip7-Zip	See advisory	22.01
Active Iq Unified ManagerNetapp	See advisory	n/a
Oncommand Workflow AutomationNetapp	See advisory	n/a
7zipdebian	See advisory	22.01+really25.01+dfsg-0+deb12u1
p7zipdebian	See advisory	16.02+really25.01+dfsg-0+deb11u1

Patched Releases

7-Zip

22.01

7zip

22.01+really25.01+dfsg-0+deb12u1, 23.01+dfsg-1

p7zip

16.02+really25.01+dfsg-0+deb11u1, 16.02+really25.01+dfsg-0+deb12u1, 16.02+transitional.1

Timeline

Publicly disclosed
Nov 3, 2023
Last updated
Aug 7, 2026

Weakness Type

CWE-191 Integer Underflow (Wrap or Wraparound)

References

3 more references in the full CVE brief

FAQ

Common Questions.

Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
Affected: 7-Zip; Active Iq Unified Manager (Netapp); Oncommand Workflow Automation (Netapp), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including 7-Zip 22.01, 7zip 22.01+really25.01+dfsg-0+deb12u1, 7zip 23.01+dfsg-1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2023-31102 Running On Your Attack Surface?

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