CVE-2011-4905

NONECVSS 0.0Trending — 3 sources updated this week
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 9%CVSS: —Exploit: NoneExposed: 0

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

Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

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. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
94.7%
KEV
Not listed

Published

January 5, 2012

Last Modified

April 29, 2026

References (14)

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.activemq:activemq-core4.1.1 ... 5.5.1 (14 versions)5.6.0—

Data Freshness Timeline

(refreshed 13× in last 7d / 43× 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.

Showing the most recent 100 of 101 total refreshes for this CVE.

  1. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 01:06 UTCEG score recompute
  3. 2026-07-23 00:09 UTCEG score recompute
  4. 2026-07-22 21:54 UTCOSV refresh
  5. 2026-07-22 21:48 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
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  8. 2026-07-21 15:21 UTCEPSS rescore
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  11. 2026-07-19 14:27 UTCEPSS rescore
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  24. 2026-07-06 02:19 UTCEPSS rescore
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  1. 2026-07-05 16:59 UTCOSV refresh
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-04 06:27 UTCEPSS rescore
  4. 2026-07-02 14:01 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
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  8. 2026-06-29 14:02 UTCEPSS rescore
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  10. 2026-06-28 04:53 UTCEPSS rescore
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  18. 2026-06-23 21:30 UTCEPSS rescore
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  21. 2026-06-21 14:53 UTCEPSS rescore
  22. 2026-06-19 19:22 UTCEPSS rescore
  23. 2026-06-19 19:22 UTCEPSS rescore
  24. 2026-06-18 17:49 UTCEPSS rescore
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  26. 2026-06-17 17:49 UTCEPSS rescore
  27. 2026-06-17 17:49 UTCEPSS rescore
  28. 2026-06-17 04:14 UTCOSV refresh
  29. 2026-06-16 17:49 UTCEPSS rescore
  30. 2026-06-16 17:49 UTCEPSS rescore
  31. 2026-06-15 17:44 UTCEPSS rescore
  32. 2026-06-14 23:14 UTCEPSS rescore
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  36. 2026-06-11 13:56 UTCEPSS rescore
  37. 2026-06-10 22:14 UTCEPSS rescore
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  39. 2026-06-08 14:14 UTCEPSS rescore
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  41. 2026-06-07 15:22 UTCEPSS rescore
  42. 2026-06-07 15:22 UTCEPSS rescore
  43. 2026-06-06 13:45 UTCEPSS rescore
  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-05 22:44 UTCEPSS rescore
  46. 2026-06-05 22:44 UTCEPSS rescore
  47. 2026-06-04 13:09 UTCEPSS rescore
  48. 2026-06-02 20:10 UTCEPSS rescore
  49. 2026-06-02 20:10 UTCEPSS rescore
  50. 2026-06-01 13:49 UTCEPSS rescore
  51. 2026-05-31 22:28 UTCEPSS rescore
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  53. 2026-05-31 00:14 UTCEPSS rescore
  54. 2026-05-31 00:14 UTCEPSS rescore
  55. 2026-05-29 13:41 UTCEPSS rescore
  56. 2026-05-29 05:50 UTCEG score recompute
  57. 2026-05-28 13:42 UTCEPSS rescore
  58. 2026-05-28 13:42 UTCEPSS rescore
  59. 2026-05-27 13:38 UTCEPSS rescore
  60. 2026-05-27 13:38 UTCEPSS rescore
  61. 2026-05-26 13:41 UTCEPSS rescore
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  63. 2026-05-26 07:16 UTCEPSS rescore
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  66. 2026-05-24 16:43 UTCEPSS rescore
  67. 2026-05-21 22:39 UTCEPSS rescore
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  69. 2026-05-20 22:37 UTCEPSS rescore
  70. 2026-05-20 22:37 UTCEPSS rescore
  71. 2026-05-20 15:33 UTCOSV refresh
  72. 2026-05-20 11:21 UTCEPSS rescore
  73. 2026-05-20 11:21 UTCEPSS rescore
  74. 2026-05-20 11:21 UTCEPSS rescore
  75. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2011-4905?
CVE-2011-4905 is a none vulnerability published on January 5, 2012. Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.
When was CVE-2011-4905 disclosed?
CVE-2011-4905 was first published in the National Vulnerability Database on January 5, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-4905 actively exploited?
CVE-2011-4905 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-4905?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4905, 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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