[NEW] [low] HCL BigFix: Vulnerability allows information disclosure
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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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2348
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-218400.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-21840 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for HCL BigFix
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[NEW] [medium] HCL BigFix: Vulnerability allows denial of servicecert-bund · 2026-07-20
- medium[NEW] [medium] HCL BigFix (Service Management): Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-17
- lowCVE-2026-21840: HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attac…nvd · 2026-07-14
- medium[NEW] [medium] HCL BigFix: Vulnerability allows data manipulationcert-bund · 2026-07-14
- high[UPDATE] [high] HCL BigFix Compliance (Ruby): Multiple vulnerabilitiescert-bund · 2026-07-07
More from CERT-Bund (BSI) Security Advisories
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-31