CVE-2021-22992

CRITICAL

9.8

CVSS Score

Published: March 31, 2021 at 04:47 PM UTC

Updated: June 17, 2026 at 03:38 AM UTC

14 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager

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Severity

CRITICAL9.8

Exploit prediction

EPSS 68%

Description

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, a malicious HTTP response to an Advanced WAF/BIG-IP ASM virtual server with Login Page configured in its policy may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may allow remote code execution (RCE), leading to complete system compromise. Note: Software versions which have reached End of Software Development (EoSD) 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%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Advanced Firewall Manager · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Advanced Web Application Firewall · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0 ≤ v < 16.0.1.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Analytics · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Application Acceleration Manager · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Application Security Manager · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0 ≤ v < 16.0.1.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Ddos Hybrid Defender · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Domain Name System · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Fraud Protection Service · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, so it looks safe — our inference, not a vendor statement

Big IP Global Traffic Manager · F5

95%

11.6.1 ≤ v < 11.6.5.312.1.0 ≤ v < 12.1.5.313.1.0 ≤ v < 13.1.3.614.1.0 ≤ v < 14.1.415.1.0 ≤ v < 15.1.2.116.0.0 ≤ v < 16.0.1.1

Affected range stops below 11.6.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.1.1, 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

https://support.f5.com/csp/article/K52510511

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://support.f5.com/csp/article/K52510511

CVSS

9.8CRITICAL[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-120

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