CVE catalog
CVE-2026-49942
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, whi
- Severity
- High · CVSS 7.3
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libnet-cidr-set-perl | sid | 0.23-1 | fixed |
| Debian | libnet-cidr-set-perl | forky | 0.23-1 | fixed |
| Debian | libnet-cidr-set-perl | trixie | 0.15-1+deb13u1 | fixed |
| Debian | libnet-cidr-set-perl | bookworm | 0.13-4 | vulnerable |
| Cpe | libnet-cidr-set-perl | Not reported | Not reported | vulnerable |
| Cpe | net\ | Not reported | 0.21 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libnet-cidr-set-perl | source | sid | 0.21-1 | not yet assigned | Not reported | Not reported |
| Debian | libnet-cidr-set-perl | source | forky | 0.21-1 | not yet assigned | Not reported | Not reported |
| Debian | libnet-cidr-set-perl | source | trixie | 0.15-1+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | libnet-cidr-set-perl | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | net\ | cpe | Not reported | 0.21 | Not reported | Not reported | Not reported |
Notes
[bookworm] libnet-cidr-set-perl: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnet-cidr-set-perl]Affected
Details (2)
0.13-4· all · bookwormAffected
nvd · libnet-cidr-set-perl · debian · bookworm; nvd · libnet-cidr-set-perl · debian · 12
0.13-4· all · bookwormAffected
nvd · libnet-cidr-set-perl · debian · bookworm; nvd · libnet-cidr-set-perl · debian · 12
[Debian 13 (Trixie)]
- [libnet-cidr-set-perl]Affected
Details (2)
0.15-1· all · trixieAffected · Fixed:
0.15-1+deb13u1nvd · libnet-cidr-set-perl · debian · 13
0.15-1· all · trixieAffected · Fixed:
0.15-1+deb13u1nvd · libnet-cidr-set-perl · debian · 13
Observed: