How severe is CVE-2017-6147?

CVE-2017-6147 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-6147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6147?

CVE-2017-6147 primarily affects F5 Big-ip Local Traffic Manager. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-6147?

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

When was CVE-2017-6147 published?

CVE-2017-6147 was published on 2017-09-18 and last updated on 2026-06-17.

CVE-2017-6147

CVE-2017-6147 is a medium-severity vulnerability in F5 Big-ip Local Traffic Manager with a CVSS 3.x base score of 5.9. 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 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Local Traffic Manager
Published: 2017-09-18
Last modified: 2026-06-17

Description

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe 12.1.2-HF1 and 13.0.0, an undisclosed type of responses may cause TMM to restart, causing an interruption of service when "SSL Forward Proxy" setting is enabled in both the Client and Server SSL profiles assigned to a BIG-IP Virtual Server.

Frequently asked questions

What is CVE-2017-6147?: In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe 12.1.2-HF1 and 13.0.0, an undisclosed type of responses may cause TMM to restart, causing an interruption of service when "SSL Forward Proxy" setting is enabled in both the Client and Server SSL profiles assigned to a BIG-IP Virtual Server.
How severe is CVE-2017-6147?: CVE-2017-6147 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-6147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6147?: CVE-2017-6147 primarily affects F5 Big-ip Local Traffic Manager. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-6147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-6147 published?: CVE-2017-6147 was published on 2017-09-18 and last updated on 2026-06-17.

References

Affected products (20)

cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:12.1.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:*

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