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Vulnerability record · CVE-2006-1591 · published 3 April 2006

CVE-2006-1591: Microsoft windows 2000 vulnerability

Microsoft · Windows 2000

Heap-based buffer overflow in Microsoft Windows Help winhlp32.exe allows user-assisted attackers to execute arbitrary code via crafted embedded image data in a .hlp file.

5.1 CVSS 2.0 Medium EPSS 7.1% · top 6.0%
5.1CVSS 2.0 base score
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
12References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in Microsoft Windows Help winhlp32.exe allows user-assisted attackers to execute arbitrary code via crafted embedded image data in a .hlp file.

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

Affected products

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

References

LinkTags
http://lists.grok.org.uk/pipermail/full-disclosure/2006-March/044748.html Exploit
http://securityreason.com/securityalert/700
http://www.open-security.org/advisories/15 ExploitVendor Advisory
http://www.securityfocus.com/archive/1/430871/100/0/threaded
http://www.securityfocus.com/bid/17325
https://exchange.xforce.ibmcloud.com/vulnerabilities/25573
http://lists.grok.org.uk/pipermail/full-disclosure/2006-March/044748.html Exploit
http://securityreason.com/securityalert/700
http://www.open-security.org/advisories/15 ExploitVendor Advisory
http://www.securityfocus.com/archive/1/430871/100/0/threaded
http://www.securityfocus.com/bid/17325
https://exchange.xforce.ibmcloud.com/vulnerabilities/25573

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

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Source: NIST National Vulnerability Database (record CVE-2006-1591), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.