What is CVE-2021-27756?

CVE-2021-27756 is a high-severity vulnerability in Hcltech Bigfix Compliance, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2022-03-04.

How severe is CVE-2021-27756?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Hcltech Bigfix Compliance

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."

Vulnerability class: POODLE (CVE-2014-3566)

Published 2022-03-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Hcltech Bigfix Compliance
"Bigfix Compliance Server" — versions "BigFix Compliance Server 2.0 - 2.0.5"

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

support.hcltechsw.com/csm (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2021-27756?: CVE-2021-27756 is a high-severity vulnerability in Hcltech Bigfix Compliance, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2022-03-04.
How severe is CVE-2021-27756?: High severity. CVSS v3 base score is 7.5 out of 10.