CVE-2025-40911

Net::CIDR::Set versions 0.10 through 0.13 for Perl does not properly handle leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses. Leading zeros are used to indicate octal numbers, which can confuse users who are intentionally using octal notation, as well as users who believe they are using decimal notation. Net::CIDR::Set used code from Net::CIDR::Lite, which had a similar vulnerability CVE-2021-47154.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
https://github.com/robrwo/perl-Net-CIDR-Set/commit/be7d91e8446ad8013b08b4be313d666dab003a8a.patch
https://metacpan.org/release/RRWO/Net-CIDR-Set-0.14/changes

Configurations

No configuration.

History

28 May 2025, 15:01

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-27 22:15

Updated : 2025-05-28 15:01

NVD link : CVE-2025-40911

Mitre link : CVE-2025-40911

CVE.ORG link : CVE-2025-40911

JSON object : View

Products Affected

No product.

CWE

CWE-1287

Improper Validation of Specified Type of Input

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