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CVE-2010-0270

Status: ModifiedHigh (10)—💥 Exploit

The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly validate fields in SMB transaction responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted (1) SMBv1 or (2) SMBv2 response, aka "SMB Client Transaction Vulnerability."

CVSS

Exploitation probability (EPSS)

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 (2)

Microsoft — Windows 7Microsoft — Windows Server 2008

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2010-0270",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-04-14T16:00:01.663",
  "references": [
    {
      "url": "http://secunia.com/advisories/39372",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-103A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7164",
      "source": "secure@microsoft.com"
    },
    {
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    },
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    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7164",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly validate fields in SMB transaction responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted (1) SMBv1 or (2) SMBv2 response, aka \"SMB Client Transaction Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El cliente SMB en Microsoft Windows Server 2008 R2 y Windows 7 no valida campos adecuadamente en las respuestas de transacción SMB, lo que permite a servidores SMB remotos y atacantes por la técnica man-in-the-middle ejecutar código de su elección o causar una denegación de servicio (caída de memoria y reinicio) a través de una repuesta manipulada (1) SMBv1 or (2) SMBv2, conocido como \"SMB Client Transaction Vulnerability.\""
    }
  ],
  "lastModified": "2026-06-16T23:15:49.820",
  "configurations": [
    {
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        {
          "negate": false,
          "cpeMatch": [
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            },
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              "matchCriteriaId": "E33796DB-4523-4F04-B564-ADF030553D51"
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          "operator": "OR"
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  "sourceIdentifier": "secure@microsoft.com"
}