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CVE-2001-1186

34
FAUCET Score

CVE-2001-1186 describes a denial-of-service vulnerability in Microsoft IIS 5.0, where remote attackers can disrupt service by sending an HTTP request with an oversized content-length value, preventing the server from terminating the connection. This medium-severity vulnerability (CVSS 5.0) requires no authentication and has a low attack complexity, leading to a partial availability impact. While not observed in active exploitation or on the KEV catalog, public exploit code exists, and its FAUCET Risk Score of 94/100 indicates a high potential risk despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.0CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
26.20%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-21177 · Dec 11, 2001
This CVE's current EPSS score of 0.2620 is in the 98th percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

online.securityfocus.com / archive/1/244931
online.securityfocus.com / archive/1/245100
iss.net / security_center/static/7691.php
Vendor Advisory
securityfocus.com / archive/1/244892
Exploit
securityfocus.com / bid/3667
ExploitVendor Advisory