CVE-1999-0726

Status: ModifiedHigh (7.8)—

An attacker can conduct a denial of service in Windows NT by executing a program with a malformed file image header.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Base score: 7.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 8.46%
Percentile among all scored CVEs: 95
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).

Affected technologies (2)

Microsoft — Windows 2000 Microsoft — Windows NT

CWEs

CWE-20

References

Raw JSON (NVD)

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{
  "id": "CVE-1999-0726",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "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": "1999-06-30T04:00:00.000",
  "references": [
    {
      "url": "http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ234557",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/499",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-023",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ234557",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/499",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "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": "An attacker can conduct a denial of service in Windows NT by executing a program with a malformed file image header."
    }
  ],
  "lastModified": "2026-06-16T21:48:55.700",
  "configurations": [
    {
      "nodes": [
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}