CVE-2004-0747

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory published 2022-04-29. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.6%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Buffer overflow in Apache 2.0.50 and earlier allows local users to gain apache privileges via a .htaccess file that causes the overflow during expansion of environment variables.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
36
EG Risk 36/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation2% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.6%
EPSS %ILE
75th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 20, 2004

Last Modified

June 16, 2026

Advisory Details (7)

Auto-updated May 31, 2026
Patch available. Sources: cert.
generic

HARTA11 RCTI+ - Superapp

http://www.trustix.org/errata/2004/0047/
generic

Support

http://www.redhat.com/support/errata/RHSA-2004-463.html
cert

VU#481998 - Apache vulnerable to buffer overflow when expanding environment variables

http://www.kb.cert.org/vuls/id/481998
generic

Apache 2, mod_dav: Multiple vulnerabilities (GLSA 200409-21) — Gentoo security

http://www.gentoo.org/security/en/glsa/glsa-200409-21.xml
generic
http://securitytracker.com/id?1011303
generic

About Secunia Research | Flexera

http://secunia.com/advisories/34920
generic

About Secunia Research | Flexera

http://secunia.com/advisories/12540

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhathttpd-0:2.0.46-40.ent2004-09-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.0.51: fixed in 2.0.51
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.0.51: fixed in 2.0.51
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.0.51: fixed in 2.0.51
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.0.51: fixed in 2.0.51
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 11× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-09 19:58 UTCEPSS rescore
  2. 2026-10-08 16:28 UTCEPSS rescore
  3. 2026-10-07 23:35 UTCEPSS rescore
  4. 2026-10-06 15:08 UTCEPSS rescore
  5. 2026-10-05 18:51 UTCOSV refresh
  6. 2026-10-05 17:36 UTCEPSS rescore
  7. 2026-10-03 14:19 UTCEPSS rescore
  8. 2026-09-29 02:40 UTCEG score recompute
  9. 2026-09-16 02:24 UTCOSV refresh
  10. 2026-09-12 14:54 UTCEPSS rescore
  11. 2026-09-10 09:23 UTCEPSS rescore
  12. 2026-08-30 01:13 UTCEPSS rescore
  13. 2026-08-28 00:51 UTCOSV refresh
  14. 2026-08-11 14:33 UTCOSV refresh
  15. 2026-07-26 14:18 UTCOSV refresh
  16. 2026-07-25 14:11 UTCEPSS rescore
  17. 2026-07-24 14:11 UTCEPSS rescore
  18. 2026-07-23 00:46 UTCEG score recompute
  19. 2026-07-23 00:27 UTCEG score recompute
  20. 2026-07-22 23:50 UTCEG score recompute
  21. 2026-07-22 21:30 UTCEG score recompute
  22. 2026-07-20 17:02 UTCEPSS rescore
  23. 2026-07-19 14:25 UTCEPSS rescore
  24. 2026-07-18 09:59 UTCEPSS rescore
  25. 2026-07-18 09:59 UTCEPSS rescore
Show 72 more
  1. 2026-07-16 16:58 UTCEPSS rescore
  2. 2026-07-15 01:55 UTCEPSS rescore
  3. 2026-07-15 01:55 UTCEPSS rescore
  4. 2026-07-13 06:07 UTCEPSS rescore
  5. 2026-07-11 08:22 UTCEPSS rescore
  6. 2026-07-11 08:22 UTCEPSS rescore
  7. 2026-07-09 08:46 UTCOSV refresh
  8. 2026-07-08 15:09 UTCEPSS rescore
  9. 2026-07-06 02:19 UTCEPSS rescore
  10. 2026-07-04 06:26 UTCEPSS rescore
  11. 2026-07-02 14:00 UTCEPSS rescore
  12. 2026-06-29 14:02 UTCEPSS rescore
  13. 2026-06-29 14:02 UTCEPSS rescore
  14. 2026-06-28 14:02 UTCEPSS rescore
  15. 2026-06-28 04:52 UTCEPSS rescore
  16. 2026-06-27 03:04 UTCEPSS rescore
  17. 2026-06-23 21:29 UTCEPSS rescore
  18. 2026-06-21 14:52 UTCEPSS rescore
  19. 2026-06-21 01:56 UTCEPSS rescore
  20. 2026-06-20 21:12 UTCOSV refresh
  21. 2026-06-19 19:22 UTCEPSS rescore
  22. 2026-06-19 19:22 UTCEPSS rescore
  23. 2026-06-18 17:49 UTCEPSS rescore
  24. 2026-06-18 17:49 UTCEPSS rescore
  25. 2026-06-17 17:49 UTCEPSS rescore
  26. 2026-06-17 17:49 UTCEPSS rescore
  27. 2026-06-16 17:49 UTCEPSS rescore
  28. 2026-06-16 17:49 UTCEPSS rescore
  29. 2026-06-15 17:43 UTCEPSS rescore
  30. 2026-06-14 23:13 UTCEPSS rescore
  31. 2026-06-14 23:13 UTCEPSS rescore
  32. 2026-06-13 22:56 UTCEPSS rescore
  33. 2026-06-12 23:08 UTCEPSS rescore
  34. 2026-06-11 13:55 UTCEPSS rescore
  35. 2026-06-10 22:13 UTCEPSS rescore
  36. 2026-06-10 13:17 UTCEPSS rescore
  37. 2026-06-08 14:13 UTCEPSS rescore
  38. 2026-06-07 15:21 UTCEPSS rescore
  39. 2026-06-06 13:44 UTCEPSS rescore
  40. 2026-06-06 13:44 UTCEPSS rescore
  41. 2026-06-06 13:44 UTCEPSS rescore
  42. 2026-06-05 22:43 UTCEPSS rescore
  43. 2026-06-05 22:43 UTCEPSS rescore
  44. 2026-06-05 06:07 UTCEPSS rescore
  45. 2026-06-04 13:09 UTCEPSS rescore
  46. 2026-06-02 20:10 UTCEPSS rescore
  47. 2026-06-01 13:49 UTCEPSS rescore
  48. 2026-06-01 13:49 UTCEPSS rescore
  49. 2026-05-31 22:28 UTCEPSS rescore
  50. 2026-05-31 15:49 UTCEG score recompute
  51. 2026-05-31 15:49 UTCVendor advisory
  52. 2026-05-31 15:49 UTCGHSA enrichment
  53. 2026-05-31 00:13 UTCEPSS rescore
  54. 2026-05-31 00:13 UTCEPSS rescore
  55. 2026-05-29 13:40 UTCEPSS rescore
  56. 2026-05-29 13:40 UTCEPSS rescore
  57. 2026-05-28 13:42 UTCEPSS rescore
  58. 2026-05-28 13:42 UTCEPSS rescore
  59. 2026-05-28 13:42 UTCEPSS rescore
  60. 2026-05-27 13:37 UTCEPSS rescore
  61. 2026-05-26 13:41 UTCEPSS rescore
  62. 2026-05-26 13:41 UTCEPSS rescore
  63. 2026-05-26 07:16 UTCEPSS rescore
  64. 2026-05-26 07:16 UTCEPSS rescore
  65. 2026-05-24 16:42 UTCEPSS rescore
  66. 2026-05-22 21:15 UTCEPSS rescore
  67. 2026-05-22 11:01 UTCOSV refresh
  68. 2026-05-20 22:36 UTCEPSS rescore
  69. 2026-05-20 11:20 UTCEPSS rescore
  70. 2026-05-20 11:20 UTCEPSS rescore
  71. 2026-05-18 21:29 UTCEPSS rescore
  72. 2026-05-18 21:29 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2004-0747?
CVE-2004-0747 is a high vulnerability published on October 20, 2004. Buffer overflow in Apache 2.0.50 and earlier allows local users to gain apache privileges via a .htaccess file that causes the overflow during expansion of environment variables.
When was CVE-2004-0747 disclosed?
CVE-2004-0747 was first published on October 20, 2004, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2004-0747 actively exploited?
CVE-2004-0747 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.6% probability of exploitation in the next 30 days (75th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2004-0747?
CVE-2004-0747 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2004-0747?
A fix for CVE-2004-0747 is available: update to the fixed version the vendor names in its advisory.

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