How severe is CVE-2020-5851?

CVE-2020-5851 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-5851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5851?

CVE-2020-5851 primarily affects F5 Big-ip Local Traffic Manager. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-5851?

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

When was CVE-2020-5851 published?

CVE-2020-5851 was published on 2020-01-14 and last updated on 2026-06-17.

CVE-2020-5851

CVE-2020-5851 is a medium-severity vulnerability in F5 Big-ip Local Traffic Manager with a CVSS 3.x base score of 4.6. 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 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Local Traffic Manager
Published: 2020-01-14
Last modified: 2026-06-17

Description

On impacted versions and platforms the Trusted Platform Module (TPM) system integrity check cannot detect modifications to specific system components. This issue only impacts specific engineering hotfixes and platforms. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.0.2.0.45.4-ENG Hotfix-BIGIP-14.1.0.2.0.62.4-ENG

Frequently asked questions

What is CVE-2020-5851?: On impacted versions and platforms the Trusted Platform Module (TPM) system integrity check cannot detect modifications to specific system components. This issue only impacts specific engineering hotfixes and platforms. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.0.2.0.45.4-ENG Hotfix-BIGIP-14.1.0.2.0.62.4-ENG
How severe is CVE-2020-5851?: CVE-2020-5851 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-5851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5851?: CVE-2020-5851 primarily affects F5 Big-ip Local Traffic Manager. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-5851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-5851 published?: CVE-2020-5851 was published on 2020-01-14 and last updated on 2026-06-17.

References

https://support.f5.com/csp/article/K91171450

Affected products (26)

cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:14.1.0.2.0.62.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:14.1.0.2.0.45.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:14.1.0.2.0.62.4:*:*:*:*:*:*:*

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