How severe is CVE-2019-6655?

CVE-2019-6655 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-6655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6655?

CVE-2019-6655 primarily affects F5 Big-ip Application Acceleration Manager. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-6655?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-6655 published?

CVE-2019-6655 was published on 2019-09-25 and last updated on 2026-06-17.

CVE-2019-6655

CVE-2019-6655 is a medium-severity vulnerability in F5 Big-ip Application Acceleration Manager with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Application Acceleration Manager
Published: 2019-09-25
Last modified: 2026-06-17

Description

On versions 13.0.0-13.1.0.1, 12.1.0-12.1.4.1, 11.6.1-11.6.4, and 11.5.1-11.5.9, BIG-IP platforms where AVR, ASM, APM, PEM, AFM, and/or AAM is provisioned may leak sensitive data.

Frequently asked questions

What is CVE-2019-6655?: On versions 13.0.0-13.1.0.1, 12.1.0-12.1.4.1, 11.6.1-11.6.4, and 11.5.1-11.5.9, BIG-IP platforms where AVR, ASM, APM, PEM, AFM, and/or AAM is provisioned may leak sensitive data.
How severe is CVE-2019-6655?: CVE-2019-6655 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-6655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6655?: CVE-2019-6655 primarily affects F5 Big-ip Application Acceleration Manager. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-6655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-6655 published?: CVE-2019-6655 was published on 2019-09-25 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

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