HCL Hive is affected by a cryptographic primitive with a risky implementation which could allow an attacker unauthorized lateral compromise or widespread credential leakage if a single internal component is breached.
CVE-2026-21751
HIGHPre-NVD 7.47.4—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. a secondary CVSS source baseline 7.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(high)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: 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 computedSeverity74% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 6%
- KEV
- Not listed
Published
August 24, 2026
Last Modified
August 24, 2026
Advisory Details (1)
Auto-updated Aug 24, 2026No 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=KB0131731Vendor Advisories for CVE-2026-21751(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 9× in last 7d / 9× 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.
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 07:18 UTCGHSA enrichment
- 2026-08-24 18:23 UTCEG score recompute
- 2026-08-24 18:22 UTCGHSA enrichment
- 2026-08-24 17:36 UTCEG score recompute
- 2026-08-24 17:36 UTCGHSA enrichment
- 2026-08-24 14:24 UTCEG score recompute
- 2026-08-24 13:22 UTCEG score recompute
- 2026-08-24 13:22 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-21751?
CVE-2026-21751 is a high vulnerability published on August 24, 2026. HCL Hive is affected by a cryptographic primitive with a risky implementation which could allow an attacker unauthorized lateral compromise or widespread credential leakage if a single internal component is breached.
When was CVE-2026-21751 disclosed?
CVE-2026-21751 was first published in the National Vulnerability Database on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21751 actively exploited?
CVE-2026-21751 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 94.4% of all scored CVEs.
What is the CVSS score of CVE-2026-21751?
CVE-2026-21751 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-21751?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21751, 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-2026-21751
Is Your Infrastructure Affected by CVE-2026-21751?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.