CVE-2025-64649

MEDIUMNVD 5.95.9—
EchelonGraph scoreHIGH confidence

Score 5.9 from GitHub Security Advisory published 2026-08-29. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

IBM Concert 1.0.0 through 2.3.1 could allow a remote attacker to perform unauthorized actions using man in the middle techniques due to improper certificate validation.

CVSS v3
5.9
EG Score
5.9(high)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 28, 2026

Last Modified

September 2, 2026

Advisory Details (1)

Auto-updated Aug 28, 2026
Patch available.
generic Patch Available

Security Bulletin: Multiple Vulnerabilities in IBM Concert Software

https://www.ibm.com/support/pages/node/7285337

Vendor Advisories for CVE-2025-64649(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 63× 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. 2026-09-20 04:44 UTCEG score recompute
  2. 2026-09-20 04:44 UTCGHSA enrichment
  3. 2026-09-19 15:42 UTCEPSS rescore
  4. 2026-09-19 02:22 UTCEG score recompute
  5. 2026-09-19 02:21 UTCGHSA enrichment
  6. 2026-09-18 19:27 UTCEPSS rescore
  7. 2026-09-18 00:00 UTCEG score recompute
  8. 2026-09-18 00:00 UTCGHSA enrichment
  9. 2026-09-17 19:30 UTCEPSS rescore
  10. 2026-09-16 21:36 UTCEG score recompute
  11. 2026-09-16 21:36 UTCGHSA enrichment
  12. 2026-09-16 14:07 UTCEPSS rescore
  13. 2026-09-15 19:14 UTCEG score recompute
  14. 2026-09-15 19:14 UTCGHSA enrichment
  15. 2026-09-15 03:10 UTCEPSS rescore
  16. 2026-09-14 16:51 UTCEG score recompute
  17. 2026-09-14 16:51 UTCGHSA enrichment
  18. 2026-09-13 16:46 UTCEPSS rescore
  19. 2026-09-13 14:29 UTCEG score recompute
  20. 2026-09-13 14:29 UTCGHSA enrichment
  21. 2026-09-12 15:00 UTCEPSS rescore
  22. 2026-09-12 12:07 UTCEG score recompute
  23. 2026-09-12 12:07 UTCGHSA enrichment
  24. 2026-09-11 14:52 UTCEPSS rescore
  25. 2026-09-11 09:45 UTCEG score recompute
Show 38 more
  1. 2026-09-11 09:45 UTCGHSA enrichment
  2. 2026-09-11 09:36 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-10 07:23 UTCGHSA enrichment
  5. 2026-09-09 05:01 UTCEG score recompute
  6. 2026-09-09 05:01 UTCGHSA enrichment
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-08 02:40 UTCEG score recompute
  9. 2026-09-08 02:39 UTCGHSA enrichment
  10. 2026-09-07 16:00 UTCEPSS rescore
  11. 2026-09-07 00:18 UTCEG score recompute
  12. 2026-09-07 00:17 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-05 21:49 UTCEG score recompute
  15. 2026-09-05 21:49 UTCGHSA enrichment
  16. 2026-09-04 19:27 UTCEG score recompute
  17. 2026-09-04 19:27 UTCGHSA enrichment
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-03 16:58 UTCGHSA enrichment
  20. 2026-09-02 14:34 UTCEG score recompute
  21. 2026-09-02 14:33 UTCGHSA enrichment
  22. 2026-09-02 14:11 UTCEPSS rescore
  23. 2026-09-01 21:53 UTCEG score recompute
  24. 2026-09-01 21:52 UTCGHSA enrichment
  25. 2026-09-01 13:53 UTCEPSS rescore
  26. 2026-08-31 19:30 UTCEG score recompute
  27. 2026-08-31 19:30 UTCGHSA enrichment
  28. 2026-08-31 18:56 UTCEG score recompute
  29. 2026-08-31 18:56 UTCGHSA enrichment
  30. 2026-08-31 03:23 UTCEG score recompute
  31. 2026-08-31 03:23 UTCGHSA enrichment
  32. 2026-08-30 19:16 UTCEPSS rescore
  33. 2026-08-30 01:21 UTCEPSS rescore
  34. 2026-08-30 01:02 UTCEG score recompute
  35. 2026-08-30 01:02 UTCGHSA enrichment
  36. 2026-08-28 22:41 UTCEG score recompute
  37. 2026-08-28 22:01 UTCEG score recompute
  38. 2026-08-28 21:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-64649?
CVE-2025-64649 is a medium vulnerability published on August 28, 2026. IBM Concert 1.0.0 through 2.3.1 could allow a remote attacker to perform unauthorized actions using man in the middle techniques due to improper certificate validation.
When was CVE-2025-64649 disclosed?
CVE-2025-64649 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-64649 actively exploited?
CVE-2025-64649 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.6% of all scored CVEs.
What is the CVSS score of CVE-2025-64649?
CVE-2025-64649 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2025-64649?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-64649, 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

Explore the affected products and dependency analysis for CVE-2025-64649

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