How severe is CVE-2018-5511?

CVE-2018-5511 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-5511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5511?

CVE-2018-5511 primarily affects F5 Big-ip Local Traffic Manager. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5511?

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-2018-5511 published?

CVE-2018-5511 was published on 2018-04-13 and last updated on 2026-06-17.

CVE-2018-5511

CVE-2018-5511 is a high-severity vulnerability in F5 Big-ip Local Traffic Manager with a CVSS 3.x base score of 7.2. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-470.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-470
Affected product: F5 Big-ip Local Traffic Manager
Published: 2018-04-13
Last modified: 2026-06-17

Description

On F5 BIG-IP 13.1.0-13.1.0.3 or 13.0.0, when authenticated administrative users execute commands in the Traffic Management User Interface (TMUI), also referred to as the BIG-IP Configuration utility, restrictions on allowed commands may not be enforced.

Frequently asked questions

What is CVE-2018-5511?: On F5 BIG-IP 13.1.0-13.1.0.3 or 13.0.0, when authenticated administrative users execute commands in the Traffic Management User Interface (TMUI), also referred to as the BIG-IP Configuration utility, restrictions on allowed commands may not be enforced.
How severe is CVE-2018-5511?: CVE-2018-5511 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-5511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5511?: CVE-2018-5511 primarily affects F5 Big-ip Local Traffic Manager. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5511?: 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-2018-5511 published?: CVE-2018-5511 was published on 2018-04-13 and last updated on 2026-06-17.

References

Affected products (29)

cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:13.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_enterprise_manager:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:14.1.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation_player:15.0.2:*:*:*:*:*:*:*

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