Which products and versions are affected by CVE-2004-0942?

Affected: HTTP Server (Apache); apache2 (debian); rootio-apache2, among others. The full list is in the CVE brief.

Is CVE-2004-0942 being exploited in the wild?

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

Is CVE-2004-0942 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-2004-0942?

Public exploit code is available.

Is there a fix for CVE-2004-0942?

Fixed versions are available, including HTTP Server 2.0.52, apache2 2.0.52-2, httpd 0:2.0.46-44.ent.

How urgently should CVE-2004-0942 be patched?

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

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Vulnerability Intelligence

CVE-2004-0942

MediumPublic exploit

Apache webserver 2.0.52 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an HTTP GET request with a MIME header containing multiple lines with a large number of space characters.

Published Feb 9, 2005 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2004-0942

Key Facts

Patch immediately

CVE-2004-0942 is a medium-severity vulnerability (CVSS 5.0 v2) affecting HTTP Server (Apache), apache2 (debian), rootio-apache2 and 1 more product.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 59% probability of exploitation in the next 30 days.
Fixed versions are available, including HTTP Server 2.0.52, apache2 2.0.52-2, httpd 0:2.0.46-44.ent.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

5.0

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

EPSS (30-day exploit likelihood)

59%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2004-0942 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

15 affected entries in total

Product	Affected versions	Fixed in
HTTP ServerApache	See advisory	2.0.52
apache2debian	See advisory	2.0.52-2
rootio-apache2rootio	See advisory	2.0.52-2
httpdredhat	See advisory	0:2.0.46-44.ent

Patched Releases

HTTP Server

2.0.52

apache2

2.0.52-2

httpd

0:2.0.46-44.ent

rootio-apache2

2.0.52-2

Timeline

Publicly disclosed
Feb 9, 2005
Last updated
Aug 4, 2026

References

advisoryRHSA-2004:562
advisoryhttps://security-tracker.debian.org/tracker/CVE-2004-0942
exploitExploitDB-855
otherAPPLE-SA-2005-08-15
otherAPPLE-SA-2005-08-17

15 more references in the full CVE brief

FAQ

Common Questions.

Apache webserver 2.0.52 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an HTTP GET request with a MIME header containing multiple lines with a large number of space characters.
Affected: HTTP Server (Apache); apache2 (debian); rootio-apache2, among others. 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.
Public exploit code is available.
Fixed versions are available, including HTTP Server 2.0.52, apache2 2.0.52-2, httpd 0:2.0.46-44.ent.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2004-0942 Running On Your Attack Surface?

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