CVE-1999-0716

Status: ModifiedMedium (4.6)—💥 Exploit

Buffer overflow in Windows NT 4.0 help file utility via a malformed help file.

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Base score: 4.6

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 3.12%
Percentile among all scored CVEs: 87
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 · Microsoft Windows NT 4.0/4.0 SP1/4.0 SP2/4.0 SP3/4.0 SP4/4.0 SP5 - Help File Buffer Overflow (5/17/1999)

Affected technologies (2)

Microsoft — Windows 2000 Microsoft — Windows NT

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-1999-0716",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "1999-05-17T04:00:00.000",
  "references": [
    {
      "url": "http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ231605",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-015",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ231605",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-015",
      "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": "Buffer overflow in Windows NT 4.0 help file utility via a malformed help file."
    }
  ],
  "lastModified": "2026-06-16T21:48:54.460",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4E545C63-FE9C-4CA1-AF0F-D999D84D2AFD"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_nt:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ED27882B-A02A-4D5F-9117-A47976C676E0"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E53CDA8E-50A8-4509-B070-CCA5604FFB21"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}