CVE-2010-1320

Status: ModifiedMedium (4)—💥 Exploit

Double free vulnerability in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7.x and 1.8.x before 1.8.2 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a request associated with (1) renewal or (2) validation.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Base score: 4

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 12%
Percentile among all scored CVEs: 96
Score date: 10/7/2026

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.

Published on Exploit-DB · MIT Kerberos 5 - 'src/kdc/do_tgs_req.c' Ticket Renewal Double-Free Memory Corruption (4/20/2010)

Affected technologies (1)

MIT — Kerberos 5

CWEs

CWE-399

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2010-1320",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ]
    }
  ],
  "published": "2010-04-22T14:30:01.040",
  "references": [
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=577490",
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      "url": "http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html",
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    {
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-004.txt",
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    {
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Double free vulnerability in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7.x and 1.8.x before 1.8.2 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a request associated with (1) renewal or (2) validation."
    },
    {
      "lang": "es",
      "value": "Una doble vulnerabilidad en do_tgs_req.c en el Centro de distribución de claves (KDC) en MIT Kerberos 5 (también conocido como krb5) versiones v1.7.x y v1.8.x antes de v1.8.2 permite a los usuarios remotos autenticados causar una denegación de servicio (con caída del demonio) o posiblemente ejecutar código arbitrario mediante una petición asociada con una (1) renovación o (2) validación."
    }
  ],
  "lastModified": "2026-06-16T23:18:07.153",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*",
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              "matchCriteriaId": "DFB1190E-BE7A-4C6B-862D-D5747C64E980"
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4B09C090-B842-43C7-B8A6-DBF63D80FEC3"
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:*",
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            },
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              "vulnerable": true,
              "matchCriteriaId": "59AFA33E-FEBC-45F5-9EC6-8AA363163FB5"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 3, 4, or 5.",
      "lastModified": "2010-04-22T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}