CVE-2015-5254

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 80.4%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 38%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

Apache ActiveMQ 5.x before 5.13.0 does not restrict the classes that can be serialized in the broker, which allows remote attackers to execute arbitrary code via a crafted serialized Java Message Service (JMS) ObjectMessage object.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
98.4%
KEV
Not listed

Published

January 8, 2016

Last Modified

May 6, 2026

Advisory Details (6)

Auto-updated May 7, 2026
No patch confirmed yet.
generic

oss-security - [ANNOUNCE] CVE-2015-5254 - Unsafe deserialization in ActiveMQ

http://www.openwall.com/lists/oss-security/2015/12/08/6
generic

[SECURITY] [DSA 3524-1] activemq security update

http://www.debian.org/security/2016/dsa-3524
generic
http://rhn.redhat.com/errata/RHSA-2016-2036.html
generic
http://rhn.redhat.com/errata/RHSA-2016-2035.html
generic
http://rhn.redhat.com/errata/RHSA-2016-0489.html
generic
http://activemq.apache.org/security-advisories.data/CVE-2015-5254-announcement.txt

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpatch2016-10-06redhat
redhatpatch2016-10-06redhat
redhatrubygem-openshift-origin-node-0:1.38.5.3-1.el6op2016-03-22redhat

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

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.activemq:activemq-client5.12.0, 5.12.15.12.2—

All Vendor Advisories

(3)

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

Publicly available exploits

(3 references)

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

  • GitHub PoCCatherines77/ActiveMQ-EXPtools
    First seen Apr 20, 2026

    Apache ActiveMQ漏洞综合利用工具(CVE-2015-5254，CVE-2016-3088，CVE-2022-41678，CVE-2023-46604，CVE-2024-32114，CVE-2026-34197，CVE-2026-40466)

    Open source ↗
  • GitHub PoCMa1Dong/ActiveMQ_CVE-2015-5254
    First seen Aug 3, 2020

    ActiveMQ_CVE-2015-5254

    Open source ↗
  • GitHub PoCjas502n/CVE-2015-5254
    First seen Aug 30, 2019

    ActiveMQ Deserialization RCE

    Open source ↗

Frequently asked(5)

What is CVE-2015-5254?
CVE-2015-5254 is a critical vulnerability published on January 8, 2016. Apache ActiveMQ 5.x before 5.13.0 does not restrict the classes that can be serialized in the broker, which allows remote attackers to execute arbitrary code via a crafted serialized Java Message Service (JMS) ObjectMessage object.
When was CVE-2015-5254 disclosed?
CVE-2015-5254 was first published in the National Vulnerability Database on January 8, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-5254 actively exploited?
CVE-2015-5254 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2015-5254?
CVE-2015-5254 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2015-5254?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5254, 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.

Dependency Blast Radius

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