CVE-2026-21767

Local information disclosure via insufficient authentication

Published Apr 1, 2026 · Updated Apr 1, 2026

Insufficient authentication in HCL BigFix Platform 11.0.0 through 11.0.5 allows local users to access sensitive application areas. HCLSoftware has not published the affected component or the operation that fails to authenticate access before exposing those areas. Local access is required, and the documented consequence is limited to disclosure of sensitive information, with no integrity or availability impact.

CVSS severity4.0
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient authentication in HCL BigFix Platform 11.0.0 through 11.0.5 allows local users to access sensitive application areas. HCLSoftware has not published the affected component or the operation that fails to authenticate access before exposing those areas. Local access is required, and the documented consequence is limited to disclosure of sensitive information, with no integrity or availability impact.

The record

CVE
CVE-2026-21767
Published
Apr 1, 2026
Updated
Apr 1, 2026
Vendor
HCLSoftware
Product
HCL BigFix Platform
Classifications
CWE-306
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.0.0 - 11.0.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

HCLSoftware · HCL BigFix Platformversion=11.0.0 - 11.0.5

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0HCL SoftwareCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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