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CVE-2007-6762

Status: ModifiedCritical (9.8)—
Severity9.8Critical · CVSS 3.0
Exploitation probability2.98 %higher than 87% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

In the Linux kernel before 2.6.20, there is an off-by-one bug in net/netlabel/netlabel_cipso_v4.c where it is possible to overflow the doi_def->tags[] array.

CVSS

Base score
9.8
Version
3.0
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
2.98 %
Percentile among all scored CVEs
87
Score date
10/21/2026

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)

Linux — Linux Kernel

CWEs

References

Show 10 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2007-6762",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-07-27T22:15:10.950",
  "references": [
    {
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a2f11c227bdf292b3a2900ad04139d301b56ac4",
      "tags": [
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    {
      "url": "https://github.com/torvalds/linux/commit/2a2f11c227bdf292b3a2900ad04139d301b56ac4",
      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://mirrors.edge.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.f5.com/csp/article/K05342145",
      "source": "cve@mitre.org"
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      "url": "https://support.f5.com/csp/article/K05342145?utm_source=f5support&amp%3Butm_medium=RSS",
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    },
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      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a2f11c227bdf292b3a2900ad04139d301b56ac4",
      "tags": [
        "Patch",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://github.com/torvalds/linux/commit/2a2f11c227bdf292b3a2900ad04139d301b56ac4",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://mirrors.edge.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.f5.com/csp/article/K05342145",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.f5.com/csp/article/K05342145?utm_source=f5support&amp%3Butm_medium=RSS",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel before 2.6.20, there is an off-by-one bug in net/netlabel/netlabel_cipso_v4.c where it is possible to overflow the doi_def->tags[] array."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux anterior a versión 2.6.20, se presenta un error por un paso en el archivo net/netlabel/netlabel_cipso_v4.c donde es posible desbordar la matriz doi_def-)tags[]."
    }
  ],
  "lastModified": "2026-06-16T22:48:43.197",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "404F0A3D-E6B5-4964-BD9D-32FAF1C76D2A",
              "versionEndExcluding": "2.6.20"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}