CVE-2026-21767

MEDIUMNVD 4.04.0—

4.0

HCL BigFix Platform is affected by insufficient authentication. The application might allow users to access sensitive areas of the application without proper authentication.

CVSS v3: 4.0
EG Score: 4.0(medium)
EPSS: 4.6%
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(1)

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

CWE-306Missing Authentication for Critical Function

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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2026-05-31 00:16 UTCepss_batch
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2026-05-29 13:44 UTCepss_batch
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2026-05-27 13:40 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-2026-21767?

CVE-2026-21767 is a medium vulnerability published on April 2, 2026. HCL BigFix Platform is affected by insufficient authentication. The application might allow users to access sensitive areas of the application without proper authentication.

When was CVE-2026-21767 disclosed?

CVE-2026-21767 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-2026-21767 actively exploited?

CVE-2026-21767 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-21767?

CVE-2026-21767 has a CVSS v3 base score of 4.0 (NVD).

How do I remediate CVE-2026-21767?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21767, 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-2026-21767

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-21767?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)