CVE-2020-5851

Integrity check bypass via TPM detection failure

Published Jan 14, 2020 · Updated Aug 4, 2024

Integrity check bypass in F5 Networks BIG-IP 14.1.0.2.0.45.4-ENG and 14.1.0.2.0.62.4-ENG allows attackers to modify components. The TPM system integrity check fails to detect modifications to specific BIG-IP system components on certain supported hardware platforms. Physical access is required by the published attack vector, and the consequence is loss of integrity assurance rather than demonstrated confidentiality or availability impact.

CVSS severity4.6
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Integrity check bypass in F5 Networks BIG-IP 14.1.0.2.0.45.4-ENG and 14.1.0.2.0.62.4-ENG allows attackers to modify components. The TPM system integrity check fails to detect modifications to specific BIG-IP system components on certain supported hardware platforms. Physical access is required by the published attack vector, and the consequence is loss of integrity assurance rather than demonstrated confidentiality or availability impact.

The record

CVE
CVE-2020-5851
Published
Jan 14, 2020
Updated
Aug 4, 2024
Vendor
F5 Networks
Product
BIG-IP
Classifications
T1562
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Hotfix-BIGIP-14.1.0.2.0.45.4-ENG, Hotfix-BIGIP-14.1.0.2.0.62.4-ENG

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=Hotfix-BIGIP-14.1.0.2.0.45.4-ENG, Hotfix-BIGIP-14.1.0.2.0.62.4-ENG

Published CVSS scores

4.6NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/A:N/I:H
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1562Impair Defenses

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo