IIS 5.0 allows remote attackers to cause a denial of service via a series of malformed WebDAV requests.

published 2001-05-07 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0151

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 67.9%; EPSS 67.9% chance of exploitation in 30 days, percentile 99.3%
public exploits: 1; Exploit-DB

Timeline

2001-03-08 First public exploit (EDB-20664)
2001-05-07 Published

Exploit prediction

67.88% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-20664 Microsoft IIS 5.0 - WebDAV Denial of Service dos, 2001-03-08

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2001/ms01-016
vendor-advisory
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A90
vdb-entry, signature
exchange.xforce.ibmcloud.com /vulnerabilities/6205
vdb-entry

Sources

CVE List CVE-2001-0151
NVD CVE-2001-0151

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary