Which products and versions are affected by CVE-2008-3466?

Affected: Host Integration Server 2000 (Microsoft); Host Integration Server 2004 (Microsoft); Host Integration Server 2006 (Microsoft). The full list is in the CVE brief.

Is CVE-2008-3466 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2008-3466 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-2008-3466?

No public exploit code is known.

Is there a fix for CVE-2008-3466?

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

How urgently should CVE-2008-3466 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2008-3466

Critical

Microsoft Host Integration Server (HIS) 2000, 2004, and 2006 does not limit RPC access to administrative functions, which allows remote attackers to bypass authentication and execute arbitrary programs via a crafted SNA RPC message using opcode 1 or 6 to call the CreateProcess…

Published Oct 14, 2008 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2008-3466 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Host Integration Server 2000 (Microsoft), Host Integration Server 2004 (Microsoft), Host Integration Server 2006 (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 78% 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 very likely to be exploited soon.

CVSS v2

10.0

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

EPSS (30-day exploit likelihood)

78%

Higher than 99.5% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2008-3466 brief as a PDF

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

Description

Affected Products

7 affected entries in total

Product	Affected versions	Fixed in
Host Integration Server 2000Microsoft	See advisory	n/a
Host Integration Server 2004Microsoft	See advisory	n/a
Host Integration Server 2006Microsoft	See advisory	n/a

Timeline

Publicly disclosed
Oct 14, 2008
Last updated
Apr 22, 2026

Weakness Type

CWE-287 Improper Authentication

References

patch32233
patch31620
other20081014 Microsoft Host Integration Server 2006 Command Execution Vulnerability
otherSSRT080143
otherMS08-059

4 more references in the full CVE brief

FAQ

Common Questions.

Microsoft Host Integration Server (HIS) 2000, 2004, and 2006 does not limit RPC access to administrative functions, which allows remote attackers to bypass authentication and execute arbitrary programs via a crafted SNA RPC message using opcode 1 or 6 to call the CreateProcess function, aka "HIS Command Execution Vuln…
Affected: Host Integration Server 2000 (Microsoft); Host Integration Server 2004 (Microsoft); Host Integration Server 2006 (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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