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CVE-2021-47154

Perl-Net-CIDR-Lite: improper handling of extraneous zero characters in an IP address string

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Severity

Moderate

Red Hat Product Security

6.3

CVSS 3.1

Review impact separately from score.

Published · March 18, 2024

Updated · November 21, 2025

Description

A vulnerability was found in the Perl module Net::CIDR::Lite, where extraneous zero characters at the start of an IP address string are not adequately handled. This flaw may enable attackers to circumvent IP address-based access controls in certain scenarios.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CWE-20 · Improper Input Validation