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CVE-2021-23051

HIGH
7.5
CVSS Score
Published: September 14, 2021 at 12:13 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
12 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%

Description

On BIG-IP versions 15.1.0.4 through 15.1.3, when the Data Plane Development Kit (DPDK)/Elastic Network Adapter (ENA) driver is used with BIG-IP on Amazon Web Services (AWS) systems, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. This is due to an incomplete fix for CVE-2020-5862. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big IP Access Policy Manager· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Advanced Firewall Manager· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Advanced Web Application Firewall· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Analytics· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Application Acceleration Manager· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Application Security Manager· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Domain Name System· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Fraud Protection Service· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Global Traffic Manager· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement
Big IP Link Controller· F5
95%
15.1.0.4 ≤ v < 15.1.3.1
Affected range stops below 15.1.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.f5.com/csp/article/K01153535

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20NVD-CWE-noinfo

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