CVE-2021-29424: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

The Net::Netmask module before 2.0000 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• Net::netmask Project Net::netmask: before 2.0000 (fixed in 2.0000)

Published 2021-04-06. Last modified 2026-06-17.