FKIE_CVE-2026-49940

Vulnerability from fkie_nvd - Published: 2026-06-04 17:16 - Updated: 2026-06-08 16:35
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks. Unicode 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.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changesRelease Notes
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://nvd.nist.gov/vuln/detail/CVE-2025-40911Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
rrwo net\ \
To clipboard 

{
  "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."
    }
  ],
  "id": "CVE-2026-49940",
  "lastModified": "2026-06-08T16:35:43.660",
  "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": "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"
    }
  ]
}


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