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Vulnerability record · CVE-2001-0239 · published 2 July 2001

CVE-2001-0239: Microsoft isa server vulnerability

Microsoft · Isa Server

Microsoft Internet Security and Acceleration (ISA) Server 2000 Web Proxy allows remote attackers to cause a denial of service via a long web request with a specific type.

7.5 CVSS 2.0 High EPSS 28% · top 2.0%
7.5CVSS 2.0 base score
28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

Microsoft Internet Security and Acceleration (ISA) Server 2000 Web Proxy allows remote attackers to cause a denial of service via a long web request with a specific type.

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

Affected products

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

References

LinkTags
http://www.ciac.org/ciac/bulletins/l-073.shtml
http://www.securityfocus.com/archive/1/176912 ExploitVendor Advisory
http://www.securityfocus.com/archive/1/177160 Vendor Advisory
http://www.securityfocus.com/archive/1/179986 ExploitVendor Advisory
http://www.securityfocus.com/bid/2600 ExploitPatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-021
https://exchange.xforce.ibmcloud.com/vulnerabilities/6383
http://www.ciac.org/ciac/bulletins/l-073.shtml
http://www.securityfocus.com/archive/1/176912 ExploitVendor Advisory
http://www.securityfocus.com/archive/1/177160 Vendor Advisory
http://www.securityfocus.com/archive/1/179986 ExploitVendor Advisory
http://www.securityfocus.com/bid/2600 ExploitPatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-021
https://exchange.xforce.ibmcloud.com/vulnerabilities/6383

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2001-0239), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.