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Vulnerability record · CVE-2001-1186 · published 11 December 2001

CVE-2001-1186: Microsoft internet information services vulnerability

Microsoft · Internet Information Services

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.

5.0 CVSS 2.0 Medium EPSS 35% · top 1.6%
5.0CVSS 2.0 base score
35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 4 tagged exploit
16 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-7269IIS 6.0 WebDAV ScStoragePathFromUrl buffer overflow enables remote code executionA buffer overflow in the ScStoragePathFromUrl function of the WebDAV service in IIS 6.0 on Windows Server 2003 R2 allows remote code execution via a …KEVEPSS 100%analysed10.0CVE-2010-3972Microsoft IIS FTP Service heap buffer overflow via crafted FTP commandA heap-based buffer overflow exists in the TELNET_STREAM_CONTEXT::OnSendData function in ftpsvc.dll in Microsoft FTP Service 7.0 and 7.5 as shipped w…EPSS 95%analysed10.0CVE-2008-4301Microsoft internet information services vulnerabilityA certain ActiveX control in iisext.dll in Microsoft Internet Information Services (IIS) allows remote attackers to set a password via a string argum…EPSS 17%10.0CVE-2007-2815IIS 5.0 webhits.dll hit-highlighting authentication bypassThe hit-highlighting feature in webhits.dll on Microsoft IIS 5.0 relies only on Windows NT ACLs, so it fails to enforce NTLM or basic authentication.…EPSS 73%analysed10.0CVE-2003-0224Microsoft internet information services vulnerabilityBuffer overflow in ssinc.dll for Microsoft Internet Information Services (IIS) 5.0 allows local users to execute arbitrary code via a web page with a…EPSS 18%10.0CVE-1999-0233Microsoft internet information services vulnerabilityIIS 1.0 allows users to execute arbitrary commands using .bat or .cmd files.EPSS 16%9.3CVE-2010-2730Microsoft internet information services memory buffer overflow vulnerabilityBuffer overflow in Microsoft Internet Information Services (IIS) 7.5, when FastCGI is enabled, allows remote attackers to execute arbitrary code via …EPSS 33%9.0CVE-2008-1446Microsoft IIS IPP ISAPI integer overflow enables remote code executionThe Internet Printing Protocol (IPP) ISAPI extension in Microsoft IIS 5.0 through 7.0 contains an integer overflow that can be triggered by a crafted…EPSS 46%analysed

Source: NIST National Vulnerability Database (record CVE-2001-1186), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.