Which products and versions are affected by CVE-2006-3439?

Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft) versions 64-bit, itanium, r2, sp1; Windows Xp (Microsoft). The full list is in the CVE brief.

Is CVE-2006-3439 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017.

Is CVE-2006-3439 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-3439?

Public exploit code is available.

Is there a fix for CVE-2006-3439?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-3439 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2006-3439

CriticalExploitedPublic exploit

Buffer overflow in the Server Service in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers, including anonymous users, to execute arbitrary code via a crafted RPC message, a different vulnerability than CVE-2006-1314.

Published Aug 8, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2006-3439 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Windows 2000 (Microsoft), Windows 2003 Server (Microsoft), Windows Xp (Microsoft).
It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017. Public exploit code is available.
EPSS estimates a 85% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v2

10.0

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

EPSS (30-day exploit likelihood)

85%

Higher than 99.7% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2006-3439 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jun 20, 2017	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

9 affected entries in total

Product	Affected versions	Fixed in
Windows 2000Microsoft	See advisory	n/a
Windows 2003 ServerMicrosoft	64-bit, itanium, r2, sp1	n/a
Windows XpMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Aug 8, 2006
Added to Industry KEV feed
Jun 20, 2017
Last updated
Apr 15, 2026

References

14 more references in the full CVE brief

FAQ

Common Questions.

Buffer overflow in the Server Service in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers, including anonymous users, to execute arbitrary code via a crafted RPC message, a different vulnerability than CVE-2006-1314.
Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft) versions 64-bit, itanium, r2, sp1; Windows Xp (Microsoft). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 20, 2017.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2006-3439 Running On Your Attack Surface?

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