---
title: "CVE-2006-3942: The server driver (srv.sys) in Microsoft… | CubePath"
description: "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)…"
language: en
source: https://cubepath.com/security/cve/CVE-2006-3942
---

# CVE-2006-3942: The server driver (srv.sys) in Microsoft… | CubePath

## Description

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.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2006-3942)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.75027 (75.0% probability)

Percentile

99.5%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [20060728 Vulnerability in Server Driver could result in Denial of Service](http://xforce.iss.net/xforce/alerts/id/231)  (xforce.iss.net) third-party-advisory
- [ADV-2006-3037](http://www.vupen.com/english/advisories/2006/3037)  (vupen.com) vdb-entry
- [SSRT061264](http://www.securityfocus.com/archive/1/449179/100/0/threaded)  (securityfocus.com) vendor-advisory
- [20060814 CORE-2006-0714: Microsoft SRV.SYS SMB\_COM\_TRANSACTION Denial of Service](http://www.securityfocus.com/archive/1/443287/100/200/threaded)  (securityfocus.com) mailing-list
- [19215](http://www.securityfocus.com/bid/19215)  (securityfocus.com) vdb-entry
- [MS06-063](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-063)  (docs.microsoft.com) vendor-advisory
- [coresecurity.com/common/showdoc.php?idx=562&idxseccion=10](http://www.coresecurity.com/common/showdoc.php?idx=562&idxseccion=10)
- [1016606](http://securitytracker.com/id?1016606)  (securitytracker.com) vdb-entry
- [21276](http://secunia.com/advisories/21276)  (secunia.com) third-party-advisory
- [1017035](http://securitytracker.com/id?1017035)  (securitytracker.com) vdb-entry
- [27644](http://www.osvdb.org/27644)  (osvdb.org) vdb-entry
- [smb-malformed-pipe(27999)](https://exchange.xforce.ibmcloud.com/vulnerabilities/27999)  (exchange.xforce.ibmcloud.com) vdb-entry
- [oval:org.mitre.oval:def:428](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A428)  (oval.cisecurity.org) vdb-entry signature
- [blogs.technet.com/msrc/archive/2006/07/28/443837.aspx](http://blogs.technet.com/msrc/archive/2006/07/28/443837.aspx)

## Timeline

1. ID reserved Jul 31, 2006
2. Record published Jul 31, 2006
3. Record last updated Aug 7, 2024

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## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:01 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)