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Vulnerability record · CVE-2019-6651 · published 25 September 2019

CVE-2019-6651: F5 big-ip local traffic manager observable discrepancy vulnerability

F5 · Big Ip Local Traffic Manager

In BIG-IP 15.0.0, 14.1.0-14.1.0.6, 14.0.0-14.0.0.5, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, 11.5.1-11.6.4, BIG-IQ 7.0.0, 6.0.0-6.1.0,5.2.0-5.4.0, iWorkflow 2.3.0, and Enterprise Manager 3.1.1, the Configuration utility login page may not follow best security practices when handling a malicious request.

5.3 CVSS 3.1 Medium EPSS 1.1% · top 35.7% CWE-203 · Observable discrepancy
5.3CVSS 3.1 base score, v2 5.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
16Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In BIG-IP 15.0.0, 14.1.0-14.1.0.6, 14.0.0-14.0.0.5, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, 11.5.1-11.6.4, BIG-IQ 7.0.0, 6.0.0-6.1.0,5.2.0-5.4.0, iWorkflow 2.3.0, and Enterprise Manager 3.1.1, the Configuration utility login page may not follow best security practices when handling a malicious request.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

16 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.f5.com/csp/article/K89509323 Vendor Advisory
https://support.f5.com/csp/article/K89509323?utm_source=f5support&amp%3Butm_medium=RSS
https://support.f5.com/csp/article/K89509323 Vendor Advisory
https://support.f5.com/csp/article/K89509323?utm_source=f5support&amp%3Butm_medium=RSS

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-6651), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.