CVE-2021-47155

9.1 CRITICAL

Published: March 18, 2024 Modified: April 15, 2026

Description

The Net::IPV4Addr module 0.10 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/#net-ipv4addrhttpsmetacpanorgreleasenet-ipv4addr

Source: cve@mitre.org

https://metacpan.org/release/Net-IPv4Addr

Source: cve@mitre.org

https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/#net-ipv4addrhttpsmetacpanorgreleasenet-ipv4addr

Source: af854a3a-2127-422b-91ae-364da2661108

https://metacpan.org/release/Net-IPv4Addr

Source: af854a3a-2127-422b-91ae-364da2661108

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.1 / 10.0

EPSS (Exploit Probability)

0.1%

17th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-284

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