How severe is CVE-2019-6687?

CVE-2019-6687 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-6687 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6687?

CVE-2019-6687 affects F5 Big-ip Application Security Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6687?

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-2019-6687 published?

CVE-2019-6687 was published on 2019-12-23 and last updated on 2026-06-17.

CVE-2019-6687

CVE-2019-6687 is a high-severity vulnerability in F5 Big-ip Application Security Manager with a CVSS 3.x base score of 7.4. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: F5 Big-ip Application Security Manager
Published: 2019-12-23
Last modified: 2026-06-17

Description

On versions 15.0.0-15.0.1.1, the BIG-IP ASM Cloud Security Services profile uses a built-in verification mechanism that fails to properly authenticate the X.509 certificate of remote endpoints.

Frequently asked questions

What is CVE-2019-6687?: On versions 15.0.0-15.0.1.1, the BIG-IP ASM Cloud Security Services profile uses a built-in verification mechanism that fails to properly authenticate the X.509 certificate of remote endpoints.
How severe is CVE-2019-6687?: CVE-2019-6687 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-6687 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6687?: CVE-2019-6687 affects F5 Big-ip Application Security Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6687?: 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-2019-6687 published?: CVE-2019-6687 was published on 2019-12-23 and last updated on 2026-06-17.

References

https://support.f5.com/csp/article/K59957337

Affected products (1)

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

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