Which products and versions are affected by CVE-2004-0116?

Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft) versions r2; Windows Xp (Microsoft). The full list is in the CVE brief.

Is CVE-2004-0116 being exploited in the wild?

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

Is CVE-2004-0116 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-2004-0116?

No public exploit code is known.

Is there a fix for CVE-2004-0116?

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

How urgently should CVE-2004-0116 be patched?

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

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On CISA KEVMedium

CVE-2004-0116Windows 2000 Vulnerability

An Activation function in the RPCSS Service involved with DCOM activation for Microsoft Windows 2000, XP, and 2003 allows remote attackers to cause a denial of service (memory consumption) via an activation request with a large length field.

Published Jun 1, 2004 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2004-0116 is a medium-severity vulnerability (CVSS 5.0 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. No public exploit code is known.
EPSS estimates a 38% 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.

Scores

CVSS v2

5.0

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

EPSS (30-day exploit likelihood)

38%

Higher than 98.5% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

44/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Jun 20, 2017

4767 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisoryTA04-104A
patchAD20040413A
patchVU#417052

Description

Known-Exploited Catalog Listings

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

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
Windows 2000Microsoft	See advisory	n/a
Windows 2003 ServerMicrosoft	r2	n/a
Windows XpMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Jun 1, 2004
Added to Industry KEV feed
Jun 20, 2017
Last updated
Apr 15, 2026

References

8 more references in the full CVE brief

FAQ

Common Questions.

An Activation function in the RPCSS Service involved with DCOM activation for Microsoft Windows 2000, XP, and 2003 allows remote attackers to cause a denial of service (memory consumption) via an activation request with a large length field.
Affected: Windows 2000 (Microsoft); Windows 2003 Server (Microsoft) versions r2; 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.
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 listed as exploited in the wild.

Is CVE-2004-0116 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.