Vulnerability DatabaseCVE-2026-49940
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CVE-2026-49940
Published:June 04, 2026
Updated:June 14, 2026
Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks. Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks.
Affected Packages
https://github.com/robrwo/perl-Net-CIDR-Set.git (GITHUB):
Affected version(s) >=v0.13 <0.21
Fix Suggestion:
Update to version 0.21
Related Resources (2)
https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
https://nvd.nist.gov/vuln/detail/CVE-2025-40911
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Validation of Unsafe Equivalence in Input
CWE-1289
EPSS
Base Score:
0.04