CVE-2019-6659

HIGHNVD 7.57.5—

7.5

On version 14.0.0-14.1.0.1, BIG-IP virtual servers with TLSv1.3 enabled may experience a denial of service due to undisclosed incoming messages.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 76.0%
KEV: Not listed

Published

November 15, 2019

Last Modified

November 21, 2024

References (2)

f5sirt@f5https://support.f5.com/csp/article/K34450231
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K34450231

Data Freshness Timeline

(refreshed 9× 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
2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 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
2026-06-01 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 00:14 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2019-6659?

CVE-2019-6659 is a high vulnerability published on November 15, 2019. On version 14.0.0-14.1.0.1, BIG-IP virtual servers with TLSv1.3 enabled may experience a denial of service due to undisclosed incoming messages.

When was CVE-2019-6659 disclosed?

CVE-2019-6659 was first published in the National Vulnerability Database on November 15, 2019, 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-2019-6659 actively exploited?

CVE-2019-6659 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-6659?

CVE-2019-6659 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2019-6659?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-6659, 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.

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CVE-2019-6659

📅 Published

🔄 Last Modified

🔗 References (2)