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CVE-2004-0747

23
FAUCET Score

CVE-2004-0747 describes a buffer overflow vulnerability in Apache HTTP Server versions 2.0.50 and earlier. This flaw allows a local attacker to elevate their privileges to those of the Apache user by crafting a malicious .htaccess file that triggers the overflow during environment variable expansion. With a CVSS score of 7.8 (High), the vulnerability presents a significant risk, enabling high impact to confidentiality, integrity, and availability with low attack complexity. Despite its severity, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.35, < 2.0.51CPE matchmatch criteria
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 96th percentile among its peer group of 16,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: httpd-0:2.0.46-40.ent
View patch

Vendor Advisories (1)

redhatCVE-2004-0747Low

security flaw

Sep 15, 2004

References

secunia.com / advisories/12540
Broken LinkNot Applicable
secunia.com / advisories/34920
Broken LinkNot Applicable
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/17384
Third Party AdvisoryVDB Entry
lists.apache.org / thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r8c9983f1172a3415f915ddb7e14de632d2d0c326eb1285755a024165%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11561
Broken LinkThird Party Advisory
support.ca.com / irj/portal/anonymous/phpsupcontent
Broken Link
gentoo.org / security/en/glsa/glsa-200409-21.xml
Third Party Advisory
kb.cert.org / vuls/id/481998
Third Party AdvisoryUS Government Resource
mandrakesecure.net / en/advisories/advisory.php
Broken Link
novell.com / linux/security/advisories/2004_32_apache2.html
Broken Link
redhat.com / support/errata/RHSA-2004-463.html
Broken LinkThird Party Advisory
trustix.org / errata/2004/0047
Broken Link
vupen.com / english/advisories/2009/1233
Broken LinkPermissions Required