CVE-2022-0529 Memory corruption in unzip

What is CVE-2022-0529?

CVE-2022-0529 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 9 Feb 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-787

Which versions are affected by CVE-2022-0529?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Redhat Enterprise Linux, Unzip Project Unzip.

How do I fix CVE-2022-0529?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-0529 being exploited?

There is no known exploitation of CVE-2022-0529 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-0529, AZL-35343, AZL-8532, DEBIAN-CVE-2022-0529, GHSA-wj94-fvj2-f29x, UBUNTU-CVE-2022-0529.