CVEvulnerability

CVE-2020-27718

7.5 HIGH Published 2020-12-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

Affected configurations

• f5 big-ip advanced web application firewall (>= 11.6.1 <= 11.6.5) • f5 big-ip advanced web application firewall (>= 12.1.0 <= 12.1.5) • f5 big-ip advanced web application firewall (>= 13.1.0 < 13.1.3.5) • f5 big-ip advanced web application firewall (>= 14.1.0 < 14.1.3.1) • f5 big-ip advanced web application firewall (>= 15.0.0 < 15.1.1) • f5 big-ip advanced web application firewall (>= 16.0.0 < 16.0.1) • f5 big-ip application security manager (>= 11.6.1 <= 11.6.5) • f5 big-ip application security manager (>= 12.1.0 <= 12.1.5) • f5 big-ip application security manager (>= 13.1.0 < 13.1.3.5) • f5 big-ip application security manager (>= 14.1.0 < 14.1.3.1) • f5 big-ip application security manager (>= 15.0.0 < 15.1.1) • f5 big-ip application security manager (>= 16.0.0 < 16.0.1)

References