CVE-2004-0493

mediumpriority · attend · 66EPSS 0.848 · 100 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

84.8% (100th) EPSS

CVSS 6.4 · medium

Is it mine?

17 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-23

The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a denial of service (memory exhaustion), and possibly an integer signedness error leading to a heap-based buffer overflow on 64 bit systems, via long header lines with large numbers of space or tab characters.

cvss

Technical severity, 0–10. One row per scoring source.

6.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.4mediumAV:N/AC:L/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v2.06.4mediumAV:N/AC:L/Au:N/C:N/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USLLM-inferredCWE-20USLLM-inferred

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-360Apache - Arbitrary Long HTTP Headers (Denial of Service)functional · exploit_db
EDB-371Apache - Arbitrary Long HTTP Headers Denial of Servicefunctional · exploit_db

affected products (17)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache http server= 2.0.47nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.0.48nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server= 2.0.49nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
avaya converged communications server= 2.0nvdUScpe:2.3:h:avaya:converged_communications_server:*:*:*:*:*:*:*:*
avaya s8300= r2.0.0nvdUScpe:2.3:h:avaya:s8300:*:*:*:*:*:*:*:*
avaya s8500= r2.0.0nvdUScpe:2.3:h:avaya:s8500:*:*:*:*:*:*:*:*
avaya s8700= r2.0.0nvdUScpe:2.3:h:avaya:s8700:*:*:*:*:*:*:*:*
gentoo linux= 1.4nvdUScpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*
ibm http server= 2.0.42nvdUScpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
ibm http server= 2.0.42.1nvdUScpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
ibm http server= 2.0.42.2nvdUScpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
ibm http server= 2.0.47nvdUScpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
ibm http server= 2.0.47.1nvdUScpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*
trustix secure linux= 1.5nvdUScpe:2.3:o:trustix:secure_linux:*:*:*:*:*:*:*:*
trustix secure linux= 2.0nvdUScpe:2.3:o:trustix:secure_linux:*:*:*:*:*:*:*:*
trustix secure linux= 2.1nvdUScpe:2.3:o:trustix:secure_linux:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2004-08-06modified 2026-06-16

references (48)

External citations — patches, advisories, analysis.

scry

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