CVE-2026-49940CWE-1289

Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks

Medium · published June 4, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
21.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00295 · 21.0th percentile
Weakness
CWE-1289 · Improper Validation of Unsafe Equivalence in Input
Published
2026-06-04T16:07Z
EPSS history
Timeline
  • 04 JUN 16:07Z
    Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks
    cvelistv5