CVE-2006-3942

NONECVSS 0.09.0▲
EchelonGraph scoreLOW confidence

Score elevated to 9.0 because EPSS predicts 86% probability of exploitation within the next 30 days (top 0.6% of all CVEs). Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss
Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 76%
CISA-KEV: Not listedEPSS: 76%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EG Score
9.0(low)
EPSS
99.5%
KEV
Not listed

Published

July 31, 2006

Last Modified

April 16, 2026

References (28)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 2× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-09 19:03 UTCEPSS rescore
  3. 2026-07-04 06:26 UTCEPSS rescore
  4. 2026-07-01 15:01 UTCEPSS rescore
  5. 2026-06-27 03:04 UTCEPSS rescore
  6. 2026-06-25 13:46 UTCEPSS rescore
  7. 2026-06-24 14:01 UTCEPSS rescore
  8. 2026-06-24 14:01 UTCEPSS rescore
  9. 2026-06-23 21:29 UTCEPSS rescore
  10. 2026-06-23 21:29 UTCEPSS rescore
  11. 2026-06-18 17:49 UTCEPSS rescore
  12. 2026-06-18 17:49 UTCEPSS rescore
  13. 2026-06-17 17:49 UTCEPSS rescore
  14. 2026-06-17 17:49 UTCEPSS rescore
  15. 2026-06-15 17:44 UTCEPSS rescore
  16. 2026-06-13 22:56 UTCEPSS rescore
  17. 2026-06-12 23:08 UTCEPSS rescore
  18. 2026-06-10 22:14 UTCEPSS rescore
  19. 2026-06-10 13:17 UTCEPSS rescore
  20. 2026-06-07 15:21 UTCEPSS rescore
  21. 2026-06-05 22:43 UTCEPSS rescore
  22. 2026-06-04 13:09 UTCEPSS rescore
  23. 2026-06-04 13:09 UTCEPSS rescore
  24. 2026-06-01 13:49 UTCEPSS rescore
  25. 2026-06-01 13:49 UTCEPSS rescore
Show 19 more
  1. 2026-06-01 13:49 UTCEPSS rescore
  2. 2026-05-31 07:26 UTCEG score recompute
  3. 2026-05-31 07:26 UTCGHSA enrichment
  4. 2026-05-31 00:13 UTCEPSS rescore
  5. 2026-05-31 00:13 UTCEPSS rescore
  6. 2026-05-31 00:13 UTCEPSS rescore
  7. 2026-05-29 13:40 UTCEPSS rescore
  8. 2026-05-28 13:42 UTCEPSS rescore
  9. 2026-05-28 13:42 UTCEPSS rescore
  10. 2026-05-27 13:37 UTCEPSS rescore
  11. 2026-05-27 13:37 UTCEPSS rescore
  12. 2026-05-26 07:16 UTCEPSS rescore
  13. 2026-05-26 07:16 UTCEPSS rescore
  14. 2026-05-24 16:42 UTCEPSS rescore
  15. 2026-05-22 21:15 UTCEPSS rescore
  16. 2026-05-22 21:15 UTCEPSS rescore
  17. 2026-05-20 22:36 UTCEPSS rescore
  18. 2026-05-20 22:36 UTCEPSS rescore
  19. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2006-3942?
CVE-2006-3942 is a none vulnerability published on July 31, 2006. 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 SMBCOMTRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the…
When was CVE-2006-3942 disclosed?
CVE-2006-3942 was first published in the National Vulnerability Database on July 31, 2006, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-3942 actively exploited?
CVE-2006-3942 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2006-3942?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-3942, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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