Answer in brief
CVE-2026-21840 records a Low severity (CVSS 3.1) vulnerability in HCL BigFix Platform is affected by a user enumeration vulnerability. The current sources do not mark it as known exploited. The current feed maps HCLSoftware/HCL BigFix Platform (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 3.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps HCLSoftware/HCL BigFix Platform (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| HCLSoftware/HCL BigFix Platformgeneric | 10.0.0 - 10.0.15, 11.0.0 - 11.0.5 | Not reported |
Published upstream
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attacker, through careful system control and response time monitoring, to perform some level of user enumeration for the BigFix service.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-21840 records a Low severity (CVSS 3.1) vulnerability in HCL BigFix Platform is affected by a user enumeration vulnerability. The current sources do not mark it as known exploited. The current feed maps HCLSoftware/HCL BigFix Platform (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 3.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps HCLSoftware/HCL BigFix Platform (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| HCLSoftware/HCL BigFix Platformgeneric | 10.0.0 - 10.0.15, 11.0.0 - 11.0.5 | Not reported |
Published upstream
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attacker, through careful system control and response time monitoring, to perform some level of user enumeration for the BigFix service.
Quoted source text, attributed separately from HOL analysis.