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Vulnerability record · CVE-2022-0529 · published 9 February 2022

CVE-2022-0529: Unzip project unzip out-of-bounds write vulnerability

UUnzip Project · Unzip

A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

5.5 CVSS 3.1 Medium EPSS 2.4% · top 16.5% CWE-787 · Out-of-bounds write
5.5CVSS 3.1 base score, v2 4.3
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2051395 Issue TrackingThird Party Advisory
https://github.com/ByteHackr/unzip_poc ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00028.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202310-17 Third Party Advisory
https://www.debian.org/security/2022/dsa-5202 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2051395 Issue TrackingThird Party Advisory
https://github.com/ByteHackr/unzip_poc ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00028.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202310-17 Third Party Advisory
https://www.debian.org/security/2022/dsa-5202 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-0529), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.