CVE-2009-3843

HIGHCVSS v2 · 10.010.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (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:C/I:C/A:C. 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 79.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
10.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 79%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 79%CVSS v2: 10.0Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

HP Operations Manager 8.10 on Windows contains a "hidden account" in the XML file that specifies Tomcat users, which allows remote attackers to conduct unrestricted file upload attacks, and thereby execute arbitrary code, by using the org.apache.catalina.manager.HTMLManagerServlet class to make requests to manager/html/upload.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0(low)
EG Risk
81(Track)
EG Risk 81/100SSVC: Track

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
Severity100% × 45%
Exploitation79% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
79%
EPSS %ILE
100%
KEV
Not listed

Published

November 24, 2009

Last Modified

April 23, 2026

References (12)

Data Freshness Timeline

(refreshed 1× in last 7d / 5× 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. 2026-08-25 13:43 UTCEPSS rescore
  2. 2026-08-19 16:58 UTCEPSS rescore
  3. 2026-08-15 01:24 UTCEPSS rescore
  4. 2026-08-08 16:31 UTCEPSS rescore
  5. 2026-07-30 01:26 UTCEPSS rescore
  6. 2026-07-26 13:39 UTCEG score recompute▲ 10.00
  7. 2026-07-24 14:12 UTCEPSS rescore
  8. 2026-07-23 14:14 UTCEPSS rescore
  9. 2026-07-23 01:00 UTCEG score recompute
  10. 2026-07-23 00:37 UTCEG score recompute▼ 8.00
  11. 2026-07-23 00:04 UTCEG score recompute▲ 8.00
  12. 2026-07-22 21:43 UTCEG score recompute▼ 9.00
  13. 2026-07-22 14:03 UTCEPSS rescore
  14. 2026-07-21 15:20 UTCEPSS rescore
  15. 2026-07-20 17:03 UTCEPSS rescore
  16. 2026-07-20 17:03 UTCEPSS rescore
  17. 2026-07-16 16:58 UTCEPSS rescore
  18. 2026-07-15 16:54 UTCEPSS rescore
  19. 2026-07-15 16:54 UTCEPSS rescore
  20. 2026-07-15 01:55 UTCEPSS rescore
  21. 2026-07-09 19:04 UTCEPSS rescore
  22. 2026-07-06 02:19 UTCEPSS rescore
  23. 2026-07-06 02:19 UTCEPSS rescore
  24. 2026-06-30 23:19 UTCEPSS rescore
  25. 2026-06-29 14:02 UTCEPSS rescore
Show 36 more
  1. 2026-06-29 14:02 UTCEPSS rescore
  2. 2026-06-25 13:46 UTCEPSS rescore
  3. 2026-06-25 13:46 UTCEPSS rescore
  4. 2026-06-23 21:29 UTCEPSS rescore
  5. 2026-06-23 21:29 UTCEPSS rescore
  6. 2026-06-21 14:53 UTCEPSS rescore
  7. 2026-06-17 17:49 UTCEPSS rescore
  8. 2026-06-17 17:49 UTCEPSS rescore
  9. 2026-06-15 17:44 UTCEPSS rescore
  10. 2026-06-13 22:57 UTCEPSS rescore
  11. 2026-06-12 23:08 UTCEPSS rescore
  12. 2026-06-12 23:08 UTCEPSS rescore
  13. 2026-06-10 22:14 UTCEPSS rescore
  14. 2026-06-05 22:44 UTCEPSS rescore
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-05 06:07 UTCEPSS rescore
  17. 2026-06-04 13:09 UTCEPSS rescore
  18. 2026-06-04 13:09 UTCEPSS rescore
  19. 2026-06-02 20:10 UTCEPSS rescore
  20. 2026-06-02 20:10 UTCEPSS rescore
  21. 2026-06-01 13:49 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-31 22:28 UTCEPSS rescore
  25. 2026-05-30 14:33 UTCEG score recompute
  26. 2026-05-30 14:33 UTCGHSA enrichment
  27. 2026-05-29 13:40 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-28 13:42 UTCEPSS rescore
  31. 2026-05-26 13:41 UTCEPSS rescore
  32. 2026-05-26 13:41 UTCEPSS rescore
  33. 2026-05-24 16:43 UTCEPSS rescore
  34. 2026-05-20 22:37 UTCEPSS rescore
  35. 2026-05-20 22:37 UTCEPSS rescore
  36. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 Metasploit modules) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16317✓ verified
    First seen Dec 14, 2010

    Apache Tomcat Manager - Application Deployer (Authenticated) Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/http/tomcat_mgr_upload✓ verified
    First seen Nov 9, 2009

    Apache Tomcat Manager Authenticated Upload Code Execution

    Open source ↗
  • Metasploitexploit/multi/http/tomcat_mgr_deploy✓ verified
    First seen Nov 9, 2009

    Apache Tomcat Manager Application Deployer Authenticated Code Execution

    Open source ↗
  • Metasploitauxiliary/scanner/http/tomcat_mgr_login✓ verified
    First seen Jan 1, 2009

    Tomcat Application Manager Login Utility

    Open source ↗

Frequently asked(4)

What is CVE-2009-3843?
CVE-2009-3843 is a high vulnerability published on November 24, 2009. HP Operations Manager 8.10 on Windows contains a "hidden account" in the XML file that specifies Tomcat users, which allows remote attackers to conduct unrestricted file upload attacks, and thereby execute arbitrary code, by using the org.apache.catalina.manager.HTMLManagerServlet class to make…
When was CVE-2009-3843 disclosed?
CVE-2009-3843 was first published in the National Vulnerability Database on November 24, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-3843 actively exploited?
CVE-2009-3843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79% probability of exploitation in the next 30 days, which ranks it in the top 0.4% of all scored CVEs.
How do I remediate CVE-2009-3843?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3843, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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