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CVE-2001-1186
Microsoft IIS 5.0 allows remote attackers to cause a denial of service via an HTTP request with a content-length value that is larger than…
Medium5.0EPSS 34.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Microsoft IIS 5.0 allows remote attackers to cause a denial of service via an HTTP request with a content-length value that is larger than the size of the request, which prevents IIS from timing out the connection.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 34.7% · top 1.6% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 20011211 Microsoft IIS/5 bogus Content-length bug. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20011212 Microsoft IIS/5.0 Content-Length DoS (proved) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20011211 Microsoft IIS/5 bogus Content-length bug Memory attack (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 3667 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- iis-false-content-length-dos(7691) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .