CVE-2006-0564

Exp

Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.

Published: 2006-02-06 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-0564 is rated High Exploit Risk (74.8/100): CVSS High severity, with high exploitation likelihood (EPSS 71.46%, 99th percentile). Core evidence: 8 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-0564

EDB-ID Source Kind Published Link
16648 exploit_db edb 2010-09-25 Exploit-DB ↗
16683 exploit_db edb 2010-09-25 Exploit-DB ↗
10321 exploit_db edb 2009-12-05 Exploit-DB ↗
7727 exploit_db edb 2009-01-12 Exploit-DB ↗
1495 exploit_db edb 2006-02-14 Exploit-DB ↗
1490 exploit_db edb 2006-02-11 Exploit-DB ↗
1488 exploit_db edb 2006-02-10 Exploit-DB ↗
1470 exploit_db edb 2006-02-06 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-0564

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 82.71% 71.46% -11.26%
2 2026-03-07 81.03% 82.71% +1.69%
3 2026-03-02 81.03%

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-0564

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2006-0564

Affected software / configurations for CVE-2006-0564

Vendor Product Version Raw CPE
microsoft html_help 1.4 cpe:2.3:a:microsoft:html_help:1.4:*:sdk:*:*:*:*:*
microsoft html_help_workshop 4.74.8702.0 cpe:2.3:a:microsoft:html_help_workshop:4.74.8702.0:*:*:*:*:*:*:*

References for CVE-2006-0564

cvelogic Threat Intelligence