CVE-2004-0243

MEDIUMCVSS v2 · 5.05.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:P/I:N/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 1.7% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: epss, nvd_v2
5.0EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.7%CVSS v2: 5.0Exploit: None knownExposed services: Not assessed

No fix has been recorded since the CVE record was published in 2004 — isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

AIX 4.3.3 through AIX 5.1, when direct remote login is disabled, displays a different message if the password is correct, which allows remote attackers to guess the password via brute force methods.

CVSS v2.0 (legacy)
5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.0MEDIUMlow confidence
EG Risk
28
EG Risk 28/100

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 (value × EchelonGraph’s weight)
Severity50% × 45%
The EG Score, 5.0 of 10.
Exploitation2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix has been recorded since the CVE record was published in 2004. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.
EPSS PROB
1.7%
EPSS %ILE
76th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).

No fix has been recorded since the CVE record was published in 2004. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

November 23, 2004

Last Modified

June 16, 2026

References (3)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 11× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 21 repeat rows among the latest 92 are merged into the row they repeat.

  1. 2026-10-11 13:37 UTCEPSS rescoreEPSS 1.7% · 76th percentile
  2. 2026-10-10 19:53 UTCEPSS rescoreEPSS 1.7% · 76th percentile
  3. 2026-10-09 19:58 UTCEPSS rescoreEPSS 1.7% · 76th percentile
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  9. 2026-10-03 14:19 UTCEPSS rescoreEPSS 1.7% · 76th percentile
  10. 2026-09-29 02:39 UTCEG score recompute
  11. 2026-09-12 14:54 UTCEPSS rescoreEPSS 1.7% · 75th percentile
  12. 2026-09-10 09:23 UTCEPSS rescoreEPSS 1.7% · 75th percentile
  13. 2026-08-30 01:13 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  14. 2026-07-26 13:24 UTCEG score recompute▲ 5.00
  15. 2026-07-25 14:11 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  16. 2026-07-24 14:11 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  17. 2026-07-23 00:45 UTCEG score recompute
  18. 2026-07-23 00:27 UTCEG score recompute
  19. 2026-07-22 23:50 UTCEG score recompute
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  21. 2026-07-20 17:02 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  22. 2026-07-19 14:25 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  23. 2026-07-18 09:59 UTCEPSS rescoreEPSS 1.7% · 74th percentile
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  25. 2026-07-15 01:55 UTCEPSS rescoreEPSS 1.7% · 74th percentile
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  1. 2026-07-11 08:22 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  2. 2026-07-08 15:09 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  3. 2026-07-06 02:19 UTCEPSS rescoreEPSS 1.7% · 74th percentile
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  5. 2026-07-02 14:00 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  6. 2026-06-29 14:02 UTCEPSS rescoreEPSS 1.7% · 74th percentile
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  8. 2026-06-28 04:52 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  9. 2026-06-27 03:04 UTCEPSS rescoreEPSS 1.7% · 74th percentile
  10. 2026-06-23 21:29 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
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  12. 2026-06-21 14:52 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  13. 2026-06-21 01:56 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  14. 2026-06-19 19:22 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  15. 2026-06-18 17:49 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  16. 2026-06-17 17:49 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  17. 2026-06-16 17:49 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  18. 2026-06-15 17:43 UTCEPSS rescoreEPSS 1.7% · 73rd percentile
  19. 2026-06-14 23:13 UTCEPSS rescoreEPSS 1.1% · 78th percentile
  20. 2026-06-13 22:56 UTCEPSS rescoreEPSS 1.1% · 78th percentile
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  24. 2026-06-10 13:17 UTCEPSS rescoreEPSS 1.1% · 78th percentile
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  29. 2026-06-05 06:07 UTCEPSS rescoreEPSS 1.1% · 78th percentile
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  33. 2026-05-31 22:28 UTCEPSS rescoreEPSS 1.1% · 78th percentile
  34. 2026-05-31 15:43 UTCEG score recompute
  35. 2026-05-31 15:43 UTCGHSA enrichmentGHSA-f7hc-7g36-w53c
  36. 2026-05-31 00:13 UTCEPSS rescoreEPSS 1.1% · 78th percentile
  37. 2026-05-29 13:40 UTCEPSS rescoreEPSS 1.1% · 78th percentile
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  39. 2026-05-27 13:37 UTCEPSS rescoreEPSS 1.1% · 78th percentile
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  46. 2026-05-18 21:29 UTCEPSS rescoreEPSS 1.1% · 78th percentile

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Frequently asked(4)

What is CVE-2004-0243?
CVE-2004-0243 is a medium-severity vulnerability; its CVE record was published on November 23, 2004. AIX 4.3.3 through AIX 5.1, when direct remote login is disabled, displays a different message if the password is correct, which allows remote attackers to guess the password via brute force methods.
When was CVE-2004-0243 made public?
CVE-2004-0243 was made public on February 3, 2004: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on November 23, 2004. EchelonGraph's copy of the record carries a last-modified date of June 16, 2026; the record at its source may have been updated since.
Is CVE-2004-0243 actively exploited?
CVE-2004-0243 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% probability of exploitation in the next 30 days (76th percentile of EPSS-scored CVEs).
How do I remediate CVE-2004-0243?
No fix for CVE-2004-0243 has been recorded since its CVE record was published in 2004, and EchelonGraph holds no vendor advisory for it. Isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

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