CVE-2026-49940 - Vulnerability Details - OpenCVE

ReportizFlow

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Rrwo	Net::cidr::set Net\

Configuration 1 [-]

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

No data.

References

Link	Providers
https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
https://nvd.nist.gov/vuln/detail/CVE-2025-40911

History

Mon, 08 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Rrwo net\
CPEs		cpe:2.3:a:rrwo:net\:\:cidr\:\:set::::::perl::*
Vendors & Products		Rrwo net\

Fri, 05 Jun 2026 10:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Rrwo Rrwo net::cidr::set
Vendors & Products		Rrwo Rrwo net::cidr::set

Thu, 04 Jun 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 04 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks
Weaknesses		CWE-1289
References		https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes https://nvd.nist.gov/vuln/detail/CVE-2025-40911

MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-06-04T16:07:01.276Z

Updated: 2026-06-04T17:36:19.084Z

Reserved: 2026-06-02T16:06:23.068Z

Link: CVE-2026-49940

Vulnrichment

Updated: 2026-06-04T17:32:25.725Z

NVD

Status : Analyzed

Published: 2026-06-04T17:16:33.053

Modified: 2026-06-08T16:35:43.660

Link: CVE-2026-49940

Redhat

No data.

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