CVE-2024-54676

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 4.6%, top 11% 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 verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 65%
CISA-KEV: Not listedEPSS: 65%CVSS: 9.8Exploit: NoneExposed: 0

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

Vendor: The Apache Software Foundation

Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0

Description: Default clustering instructions at https://openmeetings.apache.org/Clustering.html  doesn't specify white/black lists for OpenJPA this leads to possible deserialisation of untrusted data. Users are recommended to upgrade to version 8.0.0 and update their startup scripts to include the relevant 'openjpa.serialization.class.blacklist' and 'openjpa.serialization.class.whitelist' configurations as shown in the documentation.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
99.2%
KEV
Not listed

Published

January 8, 2025

Last Modified

January 15, 2025

Advisory Details (2)

Auto-updated May 30, 2026
No patch confirmed yet.
generic

oss-security - CVE-2024-54676: Apache OpenMeetings: Deserialisation of untrusted data in cluster mode

http://www.openwall.com/lists/oss-security/2025/01/08/1
generic
https://lists.apache.org/thread/o0k05jxrt5tp4nm45lj14yfjxmg67m95

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.openmeetings:openmeetings-parent3.1.2 ... 7.2.0 (29 versions)8.0.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 27× 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. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
  3. 2026-07-20 17:07 UTCEPSS rescore
  4. 2026-07-19 02:28 UTCEPSS rescore
  5. 2026-07-19 02:28 UTCEPSS rescore
  6. 2026-07-16 17:02 UTCEPSS rescore
  7. 2026-07-15 16:57 UTCEPSS rescore
  8. 2026-07-13 22:29 UTCEPSS rescore
  9. 2026-07-12 05:45 UTCEPSS rescore
  10. 2026-07-11 08:26 UTCEPSS rescore
  11. 2026-07-09 19:09 UTCEPSS rescore
  12. 2026-07-09 19:09 UTCEPSS rescore
  13. 2026-07-08 15:14 UTCEPSS rescore
  14. 2026-07-07 14:11 UTCOSV refresh
  15. 2026-07-07 13:45 UTCEPSS rescore
  16. 2026-07-07 13:45 UTCEPSS rescore
  17. 2026-07-06 16:26 UTCEPSS rescore
  18. 2026-07-06 16:26 UTCEPSS rescore
  19. 2026-07-05 02:29 UTCEPSS rescore
  20. 2026-07-01 15:06 UTCEPSS rescore
  21. 2026-06-28 04:55 UTCEPSS rescore
  22. 2026-06-28 04:55 UTCEPSS rescore
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-27 03:07 UTCEPSS rescore
  25. 2026-06-25 13:49 UTCEPSS rescore
Show 37 more
  1. 2026-06-25 13:49 UTCEPSS rescore
  2. 2026-06-23 21:32 UTCEPSS rescore
  3. 2026-06-19 01:35 UTCOSV refresh
  4. 2026-06-18 17:52 UTCEPSS rescore
  5. 2026-06-18 17:52 UTCEPSS rescore
  6. 2026-06-17 17:52 UTCEPSS rescore
  7. 2026-06-16 17:52 UTCEPSS rescore
  8. 2026-06-15 17:48 UTCEPSS rescore
  9. 2026-06-14 23:17 UTCEPSS rescore
  10. 2026-06-13 22:59 UTCEPSS rescore
  11. 2026-06-13 22:59 UTCEPSS rescore
  12. 2026-06-12 23:11 UTCEPSS rescore
  13. 2026-06-12 23:11 UTCEPSS rescore
  14. 2026-06-11 13:59 UTCEPSS rescore
  15. 2026-06-11 13:59 UTCEPSS rescore
  16. 2026-06-10 22:18 UTCEPSS rescore
  17. 2026-06-10 22:18 UTCEPSS rescore
  18. 2026-06-10 13:21 UTCEPSS rescore
  19. 2026-06-08 14:16 UTCEPSS rescore
  20. 2026-06-08 14:16 UTCEPSS rescore
  21. 2026-06-07 15:24 UTCEPSS rescore
  22. 2026-06-07 15:24 UTCEPSS rescore
  23. 2026-06-06 13:46 UTCEPSS rescore
  24. 2026-06-06 13:46 UTCEPSS rescore
  25. 2026-06-05 22:46 UTCEPSS rescore
  26. 2026-06-05 22:46 UTCEPSS rescore
  27. 2026-06-05 06:09 UTCEPSS rescore
  28. 2026-06-05 06:09 UTCEPSS rescore
  29. 2026-06-04 13:11 UTCEPSS rescore
  30. 2026-06-04 13:11 UTCEPSS rescore
  31. 2026-06-02 20:12 UTCEPSS rescore
  32. 2026-06-02 20:12 UTCEPSS rescore
  33. 2026-05-31 00:16 UTCEPSS rescore
  34. 2026-05-31 00:16 UTCEPSS rescore
  35. 2026-05-30 14:00 UTCEG score recompute
  36. 2026-05-30 00:12 UTCOSV refresh
  37. 2026-05-29 13:43 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2024-54676?
CVE-2024-54676 is a critical vulnerability published on January 8, 2025. Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0 Description: Default clustering instructions at https://openmeetings.apache.org/Clustering.html doesn't specify white/black lists for OpenJPA this leads to possible deserialisation of untrusted…
When was CVE-2024-54676 disclosed?
CVE-2024-54676 was first published in the National Vulnerability Database on January 8, 2025, with the most recent update on January 15, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-54676 actively exploited?
CVE-2024-54676 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-54676?
CVE-2024-54676 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-54676?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-54676, 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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