CVE-2006-6456

Unspecified vulnerability in Microsoft Word 2000, 2002, and 2003 and Word Viewer 2003 allows remote attackers to execute code via unspecified vectors related to malformed data structures that trigger memory corruption, a different vulnerability than CVE-2006-5994.

Published: 2006-12-11 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-6456 is rated High Risk (74.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 59.65%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.71% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2006-6456

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 2025-08-29 56.94% 59.65% +2.71%
2 2025-07-30 56.57% 56.94% +0.37%
3 2025-03-30 56.57%

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-6456

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2006-6456

OS Trackers for CVE-2006-6456

vendor priority summary link
alpine CVE-2006-6456: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-6456

Affected software / configurations for CVE-2006-6456

Vendor Product Version Raw CPE
microsoft office 2000 cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:sp2:*:*:*:*:*:*
microsoft office 2004 cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:*
microsoft office xp cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*
microsoft word 2000 cpe:2.3:a:microsoft:word:2000:*:*:*:*:*:*:*
microsoft word 2002 cpe:2.3:a:microsoft:word:2002:*:*:*:*:*:*:*
microsoft word 2003 cpe:2.3:a:microsoft:word:2003:*:*:*:*:*:*:*
microsoft word_viewer 2003 cpe:2.3:a:microsoft:word_viewer:2003:*:*:*:*:*:*:*
microsoft works 2004 cpe:2.3:a:microsoft:works:2004:*:*:*:*:*:*:*
microsoft works 2005 cpe:2.3:a:microsoft:works:2005:*:*:*:*:*:*:*
microsoft works 2006 cpe:2.3:a:microsoft:works:2006:*:*:*:*:*:*:*

References for CVE-2006-6456

URL Tags
http://archives.neohapsis.com/archives/fulldisclosure/2006-12/0199.html
http://archives.neohapsis.com/archives/fulldisclosure/2006-12/0215.html
http://blogs.technet.com/msrc/archive/2006/12/10/new-report-of-a-word-zero-day.aspx Vendor Advisory
http://isc.sans.org/diary.php?storyid=1925 Vendor Advisory
http://secunia.com/advisories/23205 Vendor Advisory
http://securitytracker.com/id?1017358
http://securitytracker.com/id?1017579
http://vil.mcafeesecurity.com/vil/content/v_141056.htm Vendor Advisory
http://vil.mcafeesecurity.com/vil/content/v_vul27249.htm Vendor Advisory
http://www.kb.cert.org/vuls/id/166700 Third Party Advisory US Government Resource
http://www.osvdb.org/30825
http://www.securityfocus.com/archive/1/454069/100/0/threaded
http://www.securityfocus.com/archive/1/454072/100/0/threaded
http://www.securityfocus.com/archive/1/454093/100/0/threaded
http://www.securityfocus.com/bid/21518
http://www.us-cert.gov/cas/techalerts/TA07-044A.html US Government Resource
http://www.vupen.com/english/advisories/2006/4920
http://www.vupen.com/english/advisories/2007/0435
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-014
https://exchange.xforce.ibmcloud.com/vulnerabilities/30806
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A746
cvelogic Threat Intelligence