CVE-2021-32640
A remote, anonymous attacker can exploit a vulnerability in HCL BigFix AEX to conduct a Denial of Service attack.
CSIRTS triage
- What
- A remote, anonymous attacker can trigger a Denial of Service condition in HCL BigFix AEX.
- Who is affected
- All deployments of HCL BigFix AEX are affected.
- Urgency
- Medium urgency; the vulnerability is not known to be exploited, but allows unauthenticated denial of service.
- Action
- Apply security updates from HCL to resolve CVE-2021-32640.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk2.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 85% of all EPSS-scored CVEs.
Advisory coverage (1)
- medium[NEW] [medium] HCL BigFix AEX: Vulnerability enables Denial of Servicecert-bund · 2026-08-21
External references
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[](https://www.csirts.com/cve/CVE-2021-32640)