How severe is CVE-2016-9247?

CVE-2016-9247 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-2016-9247 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9247?

CVE-2016-9247 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-2016-9247?

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

When was CVE-2016-9247 published?

CVE-2016-9247 was published on 2017-01-10 and last updated on 2026-06-17.

CVE-2016-9247

CVE-2016-9247 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. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: F5 Big-ip Local Traffic Manager
Published: 2017-01-10
Last modified: 2026-06-17

Description

Under certain conditions for BIG-IP systems using a virtual server with an associated FastL4 profile and TCP analytics profile, a specific sequence of packets may cause the Traffic Management Microkernel (TMM) to restart.

Frequently asked questions

What is CVE-2016-9247?: Under certain conditions for BIG-IP systems using a virtual server with an associated FastL4 profile and TCP analytics profile, a specific sequence of packets may cause the Traffic Management Microkernel (TMM) to restart.
How severe is CVE-2016-9247?: CVE-2016-9247 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-2016-9247 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9247?: CVE-2016-9247 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-2016-9247?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-9247 published?: CVE-2016-9247 was published on 2017-01-10 and last updated on 2026-06-17.

References

Affected products (20)

cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:12.1.1:*:*:*:*:*:*:*

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