Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2006-3942

77
FAUCET Score

CVE-2006-3942 is a denial-of-service vulnerability affecting Microsoft Windows NT 4.0, 2000, XP, and Server 2003, specifically within the srv.sys driver. This flaw allows remote attackers to crash the system by sending a malformed SMB_COM_TRANSACTION message lacking null termination, leading to a NULL dereference. With a CVSS score of 7.8 (High), it is easily exploitable over the network without authentication, resulting in a complete system compromise (denial of service). While not listed on the KEV catalog, exploit modules are publicly available in Metasploit and ExploitDB, indicating readily accessible exploit code, though 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:*:sp4:*:fr:*:*:*:*
64-bitCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:64-bit:*:*:*:*:*:*:*
itaniumCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:itanium:*:*:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:*
sp1CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:sp1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
75.03%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Microsoft SRV.SYS Mailslot Write Corruption · Jul 11, 2006
ExploitDB: EDB-2057 · Jul 21, 2006
This CVE's current EPSS score of 0.7503 is in the 99th percentile among its peer group of 51,551 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, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/2006/07/28/443837.aspx
docs.microsoft.com / en-us/security-updates/securitybulletins/2006/ms06-063
secunia.com / advisories/21276
Vendor Advisory
securitytracker.com / id
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/27999
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A428
coresecurity.com / common/showdoc.php
osvdb.org / 27644
securityfocus.com / archive/1/443287/100/200/threaded
securityfocus.com / archive/1/449179/100/0/threaded
securityfocus.com / bid/19215
vupen.com / english/advisories/2006/3037
Vendor Advisory
xforce.iss.net / xforce/alerts/id/231