CVE-2005-4360

Status: ModifiedHigh (7.8)—

The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP Professional SP2 allows remote attackers to execute arbitrary code via multiple requests to ".dll" followed by arguments such as "~0" through "~9", which causes ntdll.dll to produce a return value that is not correctly handled by IIS, as demonstrated using "/_vti_bin/.dll/*/~0". NOTE: the consequence was originally believed to be only a denial of service (application crash and reboot).

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 87%
Percentile among all scored CVEs: 100
Score date: 10/1/2026

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 (1)

Microsoft — Internet Information Services

CWEs

CWE-252

References

Raw JSON (NVD)

Show

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  "id": "CVE-2005-4360",
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:C/A:N",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 6.9,
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        "obtainAllPrivilege": false,
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  "published": "2005-12-20T01:03:00.000",
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    }
  ],
  "lastModified": "2026-06-16T22:18:39.440",
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