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CVE-2007-2878

Status: ModifiedMedium (4.9)—Exploit
Severity4.9Medium · CVSS 2.0
Exploitation probability0.88 %higher than 59% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailablePublished on Exploit-DB

The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors.

CVSS

Base score
4.9
Version
2.0
Vector
AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.88 %
Percentile among all scored CVEs
59
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 40 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2007-2878",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "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": "2007-05-29T20:30:00.000",
  "references": [
    {
      "url": "http://osvdb.org/35926",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/25505",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/26133",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/26139",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/26760",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/27436",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/27747",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/28626",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1479",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0705.html",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0939.html",
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      "url": "http://www.ubuntu.com/usn/usn-486-1",
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    {
      "url": "http://www.vupen.com/english/advisories/2007/2023",
      "source": "cve@mitre.org"
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34669",
      "source": "cve@mitre.org"
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11674",
      "source": "cve@mitre.org"
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    {
      "url": "http://osvdb.org/35926",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25505",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26133",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26139",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26760",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27436",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27747",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/28626",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.debian.org/security/2008/dsa-1479",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0705.html",
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    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-0939.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/24134",
      "tags": [
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        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/usn-486-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.ubuntu.com/usn/usn-510-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2023",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34669",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11674",
      "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": "The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors."
    },
    {
      "lang": "es",
      "value": "Las llamadas ioctl VFAT compat en el núcleo de Linux anterior a 2.6.21.2, cuando se ejecuta en un sistema de 64 bits, permite a usuarios locales corromper una estructura kernel_dirent y provocar una denegación de servicio (caída del sistema) a través de vectores no especificados."
    }
  ],
  "lastModified": "2026-06-16T22:40:37.540",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.21.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6AD2E9DC-2876-4515-BCE6-DDD0CC6A5708"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.",
      "lastModified": "2007-10-18T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}