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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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.\n\nLeading 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.\n\nNet::CIDR::Set used code from Net::CIDR::Lite, which had a similar vulnerability CVE-2021-47154."}, {"lang": "es", "value": "Las versiones 0.10 a 0.13 de Net::CIDR::Set para Perl no gestionan correctamente los ceros iniciales en las cadenas de direcciones IP CIDR, lo que podr\u00eda permitir a los atacantes eludir el control de acceso basado en direcciones IP. Los ceros iniciales se utilizan para indicar n\u00fameros octales, lo que puede confundir tanto a los usuarios que utilizan la notaci\u00f3n octal intencionalmente como a los que creen que utilizan la notaci\u00f3n decimal. Net::CIDR::Set utilizaba c\u00f3digo de Net::CIDR::Lite, que presentaba una vulnerabilidad similar, CVE-2021-47154."}], "id": "CVE-2025-40911", "lastModified": "2025-05-28T15:01:30.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-05-27T22:15:22.337", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/robrwo/perl-Net-CIDR-Set/commit/be7d91e8446ad8013b08b4be313d666dab003a8a.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/RRWO/Net-CIDR-Set-0.14/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1287"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

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