Vulnerability · Published Jul 14, 2026 · Assigned by HCL
CVE-2026-21840HCL BigFix Platform is affected by a user enumeration vulnerability
Low 3.1
In plain English
A low-severity security flaw in HCL BigFix Platform from HCLSoftware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 84.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HCLSoftware | HCL BigFix Platform | 10.0.0 - 10.0.15, 11.0.0 - 11.0.5 |
Weakness: CWE-208 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N