How severe is CVE-2019-6628?

CVE-2019-6628 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-6628 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6628?

CVE-2019-6628 affects F5 Big-ip Policy Enforcement Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6628?

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-2019-6628 published?

CVE-2019-6628 was published on 2019-07-03 and last updated on 2026-06-17.

CVE-2019-6628

CVE-2019-6628 is a high-severity vulnerability in F5 Big-ip Policy Enforcement Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Policy Enforcement Manager
Published: 2019-07-03
Last modified: 2026-06-17

Description

On BIG-IP PEM 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, under certain conditions, the TMM process may terminate and restart while processing BIG-IP PEM traffic with the OpenVPN classifier.

Frequently asked questions

What is CVE-2019-6628?: On BIG-IP PEM 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, under certain conditions, the TMM process may terminate and restart while processing BIG-IP PEM traffic with the OpenVPN classifier.
How severe is CVE-2019-6628?: CVE-2019-6628 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-6628 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6628?: CVE-2019-6628 affects F5 Big-ip Policy Enforcement Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6628?: 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-2019-6628 published?: CVE-2019-6628 was published on 2019-07-03 and last updated on 2026-06-17.

References

https://support.f5.com/csp/article/K04730051

Affected products (1)

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

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