CVE-2021-27766 HCL BigFix Platform Client is affected by a Privilege Escalation Vulnerability
A local attacker can escalate privileges via a vulnerable InstallShield component in the BigFix Client installer.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-27766?
CVE-2021-27766 is a medium-severity vulnerability in HCL Software BigFix Platform, published on 6 May 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2021-27766?
It affects 1 product.
Products include Hcltech Bigfix Platform.
How do I fix CVE-2021-27766?
No fix has been published for CVE-2021-27766 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-27766 being exploited?
There is no known exploitation of CVE-2021-27766 in the wild and no public exploit code.
Other vulnerabilities in HCL Software BigFix Platform
- CVE-2026-21765 HCL BigFix Platform is affected by insecure permissions on private cryptographic keys
- CVE-2023-37519 HCL BigFix Platform is affected by Unathenticated Stored Cross-Site Scripting (XSS)
- CVE-2023-37520 HCL BigFix Platform is affected by Unathenticated Stored Cross-Site Scripting (XSS)
- CVE-2020-14254 Weak cryptography in HCL BigFix Inventory
- CVE-2022-42453 HCL BigFix Platform is affected by insufficient warnings
Sources
Also known as GHSA-xw39-fhvp-3jj6.