How severe is CVE-2021-27756?

CVE-2021-27756 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-27756 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27756?

CVE-2021-27756 affects Hcltech Bigfix Compliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27756?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-27756 published?

CVE-2021-27756 was published on 2022-03-04 and last updated on 2026-06-17.

CVE-2021-27756

CVE-2021-27756 is a high-severity vulnerability in Hcltech Bigfix Compliance with a CVSS 3.x base score of 7.5. 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-327.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Hcltech Bigfix Compliance
Published: 2022-03-04
Last modified: 2026-06-17

Description

"TLS-RSA cipher suites are not disabled in BigFix Compliance up to v2.0.5. If TLS 2.0 and secure ciphers are not enabled then an attacker can passively record traffic and later decrypt it."

Frequently asked questions

What is CVE-2021-27756?: "TLS-RSA cipher suites are not disabled in BigFix Compliance up to v2.0.5. If TLS 2.0 and secure ciphers are not enabled then an attacker can passively record traffic and later decrypt it."
How severe is CVE-2021-27756?: CVE-2021-27756 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-27756 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27756?: CVE-2021-27756 affects Hcltech Bigfix Compliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27756?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-27756 published?: CVE-2021-27756 was published on 2022-03-04 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0096977

Affected products (1)

cpe:2.3:a:hcltech:bigfix_compliance:*:*:*:*:*:*:*:*

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