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Vulnerability details: VCID-uc16-9cqt-6fdn
Vulnerability ID VCID-uc16-9cqt-6fdn
Aliases CVE-2004-0493
Summary A memory leak in parsing of HTTP headers which can be triggered remotely may allow a denial of service attack due to excessive memory consumption.
Status Published
Exploitability 2.0
Weighted Severity 6.2
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.80814 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.80814 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
epss 0.89211 https://api.first.org/data/v1/epss?cve=CVE-2004-0493
apache_httpd important https://httpd.apache.org/security/json/CVE-2004-0493.json
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2004-0493.json
https://api.first.org/data/v1/epss?cve=CVE-2004-0493
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0493
1617211 https://bugzilla.redhat.com/show_bug.cgi?id=1617211
CVE-2004-0493 https://httpd.apache.org/security/json/CVE-2004-0493.json
OSVDB-7269;CVE-2004-0493 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/371.c
OSVDB-7269;CVE-2004-0493 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/360.pl
RHSA-2004:342 https://access.redhat.com/errata/RHSA-2004:342
Data source Exploit-DB
Date added July 21, 2004
Description Apache - Arbitrary Long HTTP Headers (Denial of Service)
Ransomware campaign use Known
Source publication date July 22, 2004
Exploit type dos
Platform multiple
Source update date March 28, 2016
Exploit Prediction Scoring System (EPSS)
Percentile 0.99104
EPSS Score 0.80814
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:42.058898+00:00 Apache HTTPD Importer Import https://httpd.apache.org/security/json/CVE-2004-0493.json 37.0.0