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.
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 |
| https://nvd.nist.gov/vuln/detail/CVE-2026-45191 | Third Party Advisory US Government Resource |
Configurations
History
08 Jun 2026, 16:37
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:rrwo:net\:\:cidr\:\:set:*:*:*:*:*:perl:*:* | |
| First Time |
Rrwo net\
Rrwo |
|
| References | () https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes - Release Notes | |
| References | () https://nvd.nist.gov/vuln/detail/CVE-2025-40911 - Third Party Advisory, US Government Resource | |
| References | () https://nvd.nist.gov/vuln/detail/CVE-2026-45191 - Third Party Advisory, US Government Resource |
04 Jun 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.3 |
04 Jun 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-04 17:16
Updated : 2026-06-08 16:37
NVD link : CVE-2026-49942
Mitre link : CVE-2026-49942
CVE.ORG link : CVE-2026-49942
JSON object : View
Products Affected
rrwo
- net\
CWE
CWE-1289
Improper Validation of Unsafe Equivalence in Input