How severe is CVE-2021-27766?

CVE-2021-27766 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2021-27766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27766?

CVE-2021-27766 affects Hcltech Bigfix Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27766?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-27766 published?

CVE-2021-27766 was published on 2022-05-06 and last updated on 2026-06-17.

CVE-2021-27766

CVE-2021-27766 is a medium-severity vulnerability in Hcltech Bigfix Platform with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v2: 4.6
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Hcltech Bigfix Platform
Published: 2022-05-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-27766?: 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.
How severe is CVE-2021-27766?: CVE-2021-27766 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2021-27766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27766?: CVE-2021-27766 affects Hcltech Bigfix Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27766?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27766 published?: CVE-2021-27766 was published on 2022-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hcltech:bigfix_platform:*:*:*:*:*:*:*:*

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