CVE-2026-49942

HIGH EPSS 22.9%
Published Jun 4, 20263w ago · Modified Jun 17, 20261w ago
7.3 CVSS 3.1
High
Find Similar
Published Jun 4, 2026 3w ago
Last Modified Jun 17, 2026 1w ago

Description

Net::CIDR::Set versions through 0.20 for Perl did not validate network masks. The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks. Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.

CVSS Details

Base Score
7.3
Exploitability
3.9
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
22.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-1289

Affected Products 1

VendorProductVersionRange
rrwonet\\ <0.21

References 3

  • metacpan.org https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
    Release Notes
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2025-40911
    Third Party AdvisoryUS Government Resource
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2026-45191
    Third Party AdvisoryUS Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.