Skip to content
Fencer Vulns
high 7.8

CVE-2006-3942 in the critical feed json

The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (sy…

published 2006-07-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-3935

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
75.0%
EPSS 75.0% chance of exploitation in 30 days, percentile 99.5%
public exploits
3
Metasploit, Exploit-DB

Summary

The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an "SMB PIPE," aka the "Mailslot DOS" vulnerability. NOTE: the name "Mailslot DOS" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.

Timeline

  1. First public exploit (Metasploit auxiliary/dos/windows/smb/ms06_035_mailslot)
  2. Published

Exploit prediction

75.03% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.