CVE-2026-49940

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.

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://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes	Release Notes
https://nvd.nist.gov/vuln/detail/CVE-2025-40911	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:rrwo:net\:\:cidr\:\:set:*:*:*:*:*:perl:*:*

History

No history.

Information

Published : 2026-06-04 17:16

Updated : 2026-07-22 20:10

NVD link : CVE-2026-49940

Mitre link : CVE-2026-49940

CVE.ORG link : CVE-2026-49940

JSON object : View

Products Affected

rrwo

net\

CWE

CWE-1289

Improper Validation of Unsafe Equivalence in Input

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