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CVE-2017-0269

Status: ModifiedMedium (5.9)—

The Microsoft Server Message Block 1.0 (SMBv1) allows denial of service when an attacker sends specially crafted requests to the server, aka "Windows SMB Denial of Service Vulnerability". This CVE ID is unique from CVE-2017-0273 and CVE-2017-0280.

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).

Affected technologies (6)

Microsoft — Windows 10Microsoft — Windows 7Microsoft — Windows 8.1Microsoft — Windows Server 2008Microsoft — Windows Server 2012Microsoft — Windows Server 2016

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-0269",
  "cveTags": [],
  "metrics": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "userInteractionRequired": false
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
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  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft Corporation",
          "product": "Server Block Message 1.0",
          "versions": [
            {
              "status": "affected",
              "version": "Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016."
            }
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  "published": "2017-05-12T14:29:05.457",
  "references": [
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      "url": "http://www.securityfocus.com/bid/98263",
      "tags": [
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      "source": "secure@microsoft.com"
    },
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      "url": "http://www.securitytracker.com/id/1038433",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0269",
      "tags": [
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        "Patch",
        "Vendor Advisory"
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98263",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0269",
      "tags": [
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        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Microsoft Server Message Block 1.0 (SMBv1) allows denial of service when an attacker sends specially crafted requests to the server, aka \"Windows SMB Denial of Service Vulnerability\". This CVE ID is unique from CVE-2017-0273 and CVE-2017-0280."
    },
    {
      "lang": "es",
      "value": "El protocolo Server Message Block versión 1.0 (SMBv1) de Microsoft, permite la denegación de servicio cuando un atacante envía peticiones especialmente diseñadas al servidor, también se conoce como \"Windows SMB Denial of Service Vulnerability\". El ID de este CVE es diferente de CVE-2017-0273 y CVE-2017-0280."
    }
  ],
  "lastModified": "2026-06-17T00:57:22.607",
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}