CVE-2021-27756

HIGHNVD 7.57.5—

7.5

"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."

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 34.1%
KEV: Not listed

Published

March 4, 2022

Last Modified

November 21, 2024

References (2)

psirt@hclhttps://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0096977
af854a3a-2127-422b-91ae-364da2661108https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0096977

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-327Use of a Broken or Risky Cryptographic Algorithm

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-27756?

CVE-2021-27756 is a high vulnerability published on March 4, 2022. "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."

When was CVE-2021-27756 disclosed?

CVE-2021-27756 was first published in the National Vulnerability Database on March 4, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-27756 actively exploited?

CVE-2021-27756 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27756?

CVE-2021-27756 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-27756?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27756, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-27756

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-27756?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)