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CVE-2007-1730

Status: ModifiedMedium (6.6)—Exploit
Severity6.6Medium · CVSS 2.0
Exploitation probability0.77 %higher than 55% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailablePublished on Exploit-DB

Integer signedness error in the DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later allows local users to read kernel memory or cause a denial of service (oops) via a negative optlen value.

CVSS

Base score
6.6
Version
2.0
Vector
AV:L/AC:L/Au:N/C:C/I:N/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.77 %
Percentile among all scored CVEs
55
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).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Show 20 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2007-1730",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 9.2,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-03-28T10:19:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=dccp&m=117509584316267&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/25392",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/2482",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/463934/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/464144/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/23162",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1017820",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-464-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1143",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/33274",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=dccp&m=117509584316267&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25392",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/2482",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/463934/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/464144/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/23162",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1017820",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-464-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1143",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/33274",
      "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": "Integer signedness error in the DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later allows local users to read kernel memory or cause a denial of service (oops) via a negative optlen value."
    },
    {
      "lang": "es",
      "value": "Un error en la presencia de signo en un entero en el soporte DCCP de la función do_dccp_getsockopt del net/dccp/proto.c en el kernel del Linux 2.6.20 y versiones posteriores permite a usuarios locales leer la memoria del kernel y provocar una denegación de servicio     (oops) mediante un valor optlen negativo."
    }
  ],
  "lastModified": "2026-06-16T22:38:11.753",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.20:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C6940324-0383-4510-BA55-770E0A6B80B7"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.20.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1E3313D5-52E8-49B3-B145-170D9A26DA43"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.20.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3D3A5FD5-4C42-4B00-8473-D5650FAED9C4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.",
      "lastModified": "2007-10-23T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}