CVE-2021-27766

Name: CVE-2021-27766
Creator: NVD / NIST
Published: 2022-05-06T18:15:09.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2021-27766 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.19%

8.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Hcltech	Bigfix Platform	>= 9.5, <= 9.5.18
Hcltech	Bigfix Platform	>= 10, <= 10.0.5

References

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0024/MNDT-2022-0024.mdThird Party Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116Vendor Advisory
https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0024/MNDT-2022-0024.mdThird Party Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116Vendor Advisory

Timeline

Published: May 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27766?

How severe is CVE-2021-27766?

CVE-2021-27766 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27766?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27766?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST