CVE-2026-21753

MEDIUMPre-NVD 4.24.2—
EchelonGraph scoreHIGH confidence

Score 4.2 from GitHub Security Advisory published 2026-08-25. a secondary CVSS source baseline 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.2Exploit: None knownExposed: 0

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

HCL Hive is affected by weak software supply chain governance, which could lead to the inclusion of vulnerable, unmaintained, or malicious third-party dependencies within the application environment.

CVSS v3
4.2
EG Score
4.2(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity42% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No patch confirmed yet.
generic

Security Bulletin: Multiple security vulnerabilities affect HCL Hive - Customer Support

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133342

Vendor Advisories for CVE-2026-21753(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 18× in last 7d / 75× 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. 2026-09-18 21:34 UTCEG score recompute
  2. 2026-09-18 21:34 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-17 21:09 UTCEG score recompute
  5. 2026-09-17 21:09 UTCGHSA enrichment
  6. 2026-09-16 21:35 UTCEG score recompute
  7. 2026-09-16 21:34 UTCGHSA enrichment
  8. 2026-09-16 14:07 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 21:25 UTCEG score recompute
  11. 2026-09-15 21:25 UTCGHSA enrichment
  12. 2026-09-14 22:25 UTCGHSA enrichment
  13. 2026-09-13 23:19 UTCEG score recompute
  14. 2026-09-13 23:19 UTCGHSA enrichment
  15. 2026-09-13 16:47 UTCEPSS rescore
  16. 2026-09-13 00:19 UTCEG score recompute
  17. 2026-09-13 00:19 UTCGHSA enrichment
  18. 2026-09-12 15:01 UTCEPSS rescore
  19. 2026-09-12 01:19 UTCEG score recompute
  20. 2026-09-12 01:19 UTCGHSA enrichment
  21. 2026-09-11 14:52 UTCEPSS rescore
  22. 2026-09-11 02:18 UTCEG score recompute
  23. 2026-09-11 02:18 UTCGHSA enrichment
  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-10 03:18 UTCGHSA enrichment
Show 50 more
  1. 2026-09-09 04:19 UTCEG score recompute
  2. 2026-09-09 04:19 UTCGHSA enrichment
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-08 05:19 UTCEG score recompute
  5. 2026-09-08 05:18 UTCGHSA enrichment
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-07 06:08 UTCEG score recompute
  8. 2026-09-07 06:08 UTCGHSA enrichment
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-06 07:08 UTCEG score recompute
  12. 2026-09-06 07:08 UTCGHSA enrichment
  13. 2026-09-05 08:08 UTCEG score recompute
  14. 2026-09-05 08:08 UTCGHSA enrichment
  15. 2026-09-04 09:08 UTCEG score recompute
  16. 2026-09-04 09:08 UTCGHSA enrichment
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-03 10:08 UTCEG score recompute
  19. 2026-09-03 10:08 UTCGHSA enrichment
  20. 2026-09-02 14:11 UTCEPSS rescore
  21. 2026-09-02 11:06 UTCEG score recompute
  22. 2026-09-02 11:06 UTCGHSA enrichment
  23. 2026-09-01 13:53 UTCEPSS rescore
  24. 2026-09-01 12:02 UTCEG score recompute
  25. 2026-09-01 12:02 UTCGHSA enrichment
  26. 2026-09-01 04:39 UTCEPSS rescore
  27. 2026-08-31 13:00 UTCEG score recompute
  28. 2026-08-31 12:59 UTCGHSA enrichment
  29. 2026-08-30 19:17 UTCEPSS rescore
  30. 2026-08-30 13:56 UTCEG score recompute
  31. 2026-08-30 13:56 UTCGHSA enrichment
  32. 2026-08-30 01:22 UTCEPSS rescore
  33. 2026-08-29 14:54 UTCEG score recompute
  34. 2026-08-29 14:54 UTCGHSA enrichment
  35. 2026-08-28 21:41 UTCEPSS rescore
  36. 2026-08-28 15:52 UTCGHSA enrichment
  37. 2026-08-28 10:25 UTCEG score recompute
  38. 2026-08-28 10:25 UTCGHSA enrichment
  39. 2026-08-27 14:25 UTCEPSS rescore
  40. 2026-08-27 11:23 UTCEG score recompute
  41. 2026-08-27 11:23 UTCGHSA enrichment
  42. 2026-08-26 14:46 UTCEPSS rescore
  43. 2026-08-26 12:23 UTCGHSA enrichment
  44. 2026-08-25 13:22 UTCEG score recompute
  45. 2026-08-25 13:22 UTCGHSA enrichment
  46. 2026-08-25 13:16 UTCEG score recompute
  47. 2026-08-25 13:16 UTCGHSA enrichment
  48. 2026-08-25 11:23 UTCEG score recompute
  49. 2026-08-25 11:07 UTCEG score recompute
  50. 2026-08-25 11:06 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-21753?
CVE-2026-21753 is a medium vulnerability published on August 25, 2026. HCL Hive is affected by weak software supply chain governance, which could lead to the inclusion of vulnerable, unmaintained, or malicious third-party dependencies within the application environment.
When was CVE-2026-21753 disclosed?
CVE-2026-21753 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21753 actively exploited?
CVE-2026-21753 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 96.3% of all scored CVEs.
What is the CVSS score of CVE-2026-21753?
CVE-2026-21753 has a CVSS v3 base score of 4.2 (NVD).
How do I remediate CVE-2026-21753?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21753, 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-2026-21753

Explore →

Is Your Infrastructure Affected by CVE-2026-21753?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs