CVSS 3.1
6.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LCVE-2021-47154
Medium (6.3). EPSS 0.5% chance of exploitation in the next 30 days.
The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
References
- https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
- https://github.com/stigtsp/Net-CIDR-Lite/commit/23b6ff0590dc279521863a502e890ef19a5a76fc
- https://lists.debian.org/debian-lts-announce/2024/03/msg00023.html
- https://metacpan.org/dist/Net-CIDR-Lite/changes
- https://metacpan.org/pod/Net::CIDR::Lite