CVE-2026-49940

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Net-CIDR-Set", "product": "Net::CIDR::Set", "programRoutines": [{"name": "Net::CIDR::Set::IPv4::_pack"}, {"name": "Net::CIDR::Set::IPv4::_encode"}, {"name": "Net::CIDR::Set::IPv6::_pack"}, {"name": "Net::CIDR::Set::IPv6::_pack_ipv4"}], "repo": "https://github.com/robrwo/perl-Net-CIDR-Set", "vendor": "RRWO", "versions": [{"lessThanOrEqual": "0.20", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rrwo:net\\:\\:cidr\\:\\:set:*:*:*:*:*:perl:*:*", "matchCriteriaId": "24C7BD24-8729-408F-BD1D-F8F0608DFE50", "versionEndExcluding": "0.21", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks.\n\nUnicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks."}, {"lang": "es", "value": "Las versiones de Net::CIDR::Set hasta la 0.20 para Perl aceptan direcciones IP y m\u00e1scaras de red no ASCII.\n\nD\u00edgitos Unicode como el Uno ar\u00e1bigo-\u00edndico (U+0661) eran aceptados pero no se analizaban correctamente como n\u00fameros. Esto podr\u00eda permitir que las m\u00e1scaras de red aceptaran redes m\u00e1s grandes."}], "id": "CVE-2026-49940", "lastModified": "2026-07-22T20:10:00.127", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49940", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-04T17:33:44.242109Z", "version": "2.0.3"}}]}, "published": "2026-06-04T17:16:33.053", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Release Notes"], "url": "https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40911"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1289"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.20]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Net::CIDR::Set", "source": "cna", "vendor": "RRWO"}, "product": "net::cidr::set", "vendor": "rrwo"}], "created": "2026-06-04T18:30:16.111650+00:00", "updated": "2026-06-05T10:07:31.441468+00:00", "vendors": ["rrwo", "rrwo$PRODUCT$net::cidr::set"]}