CVE-2007-4409

Status: ModifiedMedium (5.1)—

Race condition in ircu 2.10.12.01 through 2.10.12.05 allows remote attackers to set a new Apass during a netburst by arranging for ops privilege to be granted before the mode arrives.

CVSS

Version: 2.0
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P
Base score: 5.1

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.33%
Percentile among all scored CVEs: 70
Score date: 10/5/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Universal Ircd — Ircu

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2007-4409",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-08-18T21:17:00.000",
  "references": [
    {
      "url": "http://osvdb.org/46714",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/3031",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/476285/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/25285",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35995",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/46714",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/3031",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/476285/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/25285",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35995",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Race condition in ircu 2.10.12.01 through 2.10.12.05 allows remote attackers to set a new Apass during a netburst by arranging for ops privilege to be granted before the mode arrives."
    },
    {
      "lang": "es",
      "value": "Condición de carrera en ircu 2.10.12.01 hasta 2.10.12.05 permite a atacantes remotos establecer una nueva contraseña de administrador (Apass) durante una ráfaga de red (netburst) provocando que el privilegio de operador (ops) sea otorgado antes de que llegue el modo."
    }
  ],
  "lastModified": "2026-06-16T22:44:01.630",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:universal_ircd:ircu:2.10.12.01:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4E155257-13BC-4EE2-A67D-50DA7D8781C1"
            },
            {
              "criteria": "cpe:2.3:a:universal_ircd:ircu:2.10.12.02:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AAB40F55-AEB9-4C11-9DD1-CEE82B8D5677"
            },
            {
              "criteria": "cpe:2.3:a:universal_ircd:ircu:2.10.12.03:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F0AD3199-0273-4B7C-9DBA-C93B38A9B998"
            },
            {
              "criteria": "cpe:2.3:a:universal_ircd:ircu:2.10.12.04:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B0DEFEDA-4060-4991-8B91-BE2A6690E3CE"
            },
            {
              "criteria": "cpe:2.3:a:universal_ircd:ircu:2.10.12.05:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "430903CF-7B43-4C85-91F7-9FF3A0BF5453"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}