CVE-2021-4217: Fedoraproject Fedora

Low severity, CVSS 3.3. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Affected products

• Fedoraproject Fedora: version 35 only
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only; version 8.0 only; version 9.0 only
• Unzip Project Unzip: version 6.0 only

Published 2022-08-24. Last modified 2026-06-17.