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CVE-2006-6696

27
FAUCET Score

CVE-2006-6696 is a double free vulnerability affecting Microsoft Windows 2000, XP, 2003, and Vista. It allows local users to gain privileges by sending a crafted MessageBox notification that triggers improper handling within the CSRSS process. With a CVSS score of 6.9, this vulnerability has a local attack vector and medium complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, two ExploitDB entries exist for denial of service and memory disclosure, but there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.39%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-3024 · Dec 27, 2006
This CVE's current EPSS score of 0.0339 is in the 98th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.technet.com / msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx
groups.google.ca / group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff
isc.sans.org / diary.php
lists.grok.org.uk / pipermail/full-disclosure/2006-December/051394.html
research.eeye.com / html/alerts/zeroday/20061215.html
docs.microsoft.com / en-us/security-updates/securitybulletins/2007/ms07-021
secunia.com / advisories/23448
Vendor Advisory
securitytracker.com / id
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1816
determina.com / security.research/vulnerabilities/csrss-harderror.html
kuban.ru / forum_new/forum2/files/19124.html
securityfocus.com / archive/1/455061/100/0/threaded
securityfocus.com / archive/1/455088/100/0/threaded
securityfocus.com / archive/1/455104/100/0/threaded
securityfocus.com / archive/1/455158/100/0/threaded
securityfocus.com / archive/1/455546/100/0/threaded
securityfocus.com / archive/1/466331/100/200/threaded
securityfocus.com / bid/21688
securityfocus.com / bid/23324
security.nnov.ru / files/messagebox.c
security.nnov.ru / Gnews944.html
vupen.com / english/advisories/2006/5120
vupen.com / english/advisories/2007/1325