CVE-2026-21840
A remote, authenticated attacker can exploit a vulnerability in HCL BigFix to disclose information.
CSIRTS triage
- What
- A remote, authenticated attacker can exploit a vulnerability in HCL BigFix to disclose information.
- Who is affected
- Authenticated users of HCL BigFix.
- Urgency
- Remediation is low urgency as the impact is limited to information disclosure.
- Action
- Update to the latest version of HCL BigFix to address this issue.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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[](https://www.csirts.com/cve/CVE-2026-21840)