CVE catalog
CVE-2025-40911
libnet-cidr-set-perl: CVE-2025-40911
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.38% · Oct 25, 2026
Net::CIDR::Set versions 0.10 through 0.13 for Perl does not properly handle leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses. Leading zeros are used to indicate octal numbers, which can confuse users who are intentionally using octal notation, as well as users who believe they are using decimal notation. Net::CIDR::Set used code from Net::CIDR::Lite, which had a similar vulnerability CVE-2021-47154.
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 |
| Ubuntu | libnet-cidr-set-perl | 20.04 | 0.13-2 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 22.04 | 0.13-3 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 24.04 | 0.13-4 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 24.04 | 0.13-5 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 25.10 | 0.13-5 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 25.10 | 0.15-1 | vulnerable |
| Ubuntu | libnet-cidr-set-perl | 25.10 | 0.19-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libnet-cidr-set-perl | source | sid | 0.15-1 | not yet assigned | Not reported | [1106699] |
| Debian | libnet-cidr-set-perl | source | forky | 0.15-1 | not yet assigned | Not reported | [1106699] |
| Debian | libnet-cidr-set-perl | source | trixie | 0.15-1 | not yet assigned | Not reported | [1106699] |
| Debian | libnet-cidr-set-perl | source | bookworm | (unfixed) | not yet assigned | Not reported | [1106699] |
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
dsa · libnet-cidr-set-perl · debian · bookworm; dsa · libnet-cidr-set-perl · debian · 12
0.13-4· all · bookwormAffected
dsa · libnet-cidr-set-perl · debian · bookworm; dsa · libnet-cidr-set-perl · debian · 12
[Debian 13 (Trixie)]
- [libnet-cidr-set-perl]Fixed
Details (2)
0.15-1· all · trixieFixed · Fixed:
0.15-1dsa · libnet-cidr-set-perl · debian · 13
0.15-1· all · trixieFixed · Fixed:
0.15-1dsa · libnet-cidr-set-perl · debian · 13
Observed: