CVE-2026-21765

HIGHNVD 8.88.8—

8.8

HCL BigFix Platform is affected by insecure permissions on private cryptographic keys. The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 2.1%
KEV: Not listed

Published

April 2, 2026

Last Modified

April 16, 2026

References (1)

psirt@hclhttps://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129906

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-21 22:43 UTCepss_batch

Frequently asked(5)

What is CVE-2026-21765?

CVE-2026-21765 is a high vulnerability published on April 2, 2026. HCL BigFix Platform is affected by insecure permissions on private cryptographic keys. The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions.

When was CVE-2026-21765 disclosed?

CVE-2026-21765 was first published in the National Vulnerability Database on April 2, 2026, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-21765 actively exploited?

CVE-2026-21765 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-21765?

CVE-2026-21765 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2026-21765?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21765, 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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CVE-2026-21765

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-21765?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)