CVE-2025-40911: Net::CIDR::Set versions 0.10 through 0.13 for Perl does not properly consider leading zero characters in IP CIDR address strings, which could allow attackers to bypass access control that is based on IP addresses
RRWO · Net::CIDR::Set
Vendor fix available · Affected: RRWO Net::CIDR::Set · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 32% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- RRWO · Net::CIDR::Setfrom 0.10 up to and including 0.13
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CoverageNo articles yet
No CyberSIXT article names CVE-2025-40911 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.