CVE-2021-22976

HIGH

BIG-IP Advanced WAF and ASM <16.0.1.1, 15.1.2, 14.1.3.1, 13.1.3.6, ...

Title source: llm
STIX 2.1

Description

On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K88230177

Scores

CVSS v3 7.5
EPSS 0.0065
EPSS Percentile 71.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (2)
f5/big-ip_advanced_web_application_firewall 12.1.0 - 12.1.5
f5/big-ip_application_security_manager 12.1.0 - 12.1.5
Published Feb 12, 2021
Tracked Since Feb 18, 2026