CVE-2022-36795 BIG-IP software SYN cookies vulnerability CVE-2022-36795

Medium 5.3 Published 19 Oct 2022 Updated 8 May 2025

Attackers can cause denial of service on F5 BIG-IP virtual servers by exploiting SYN cookies when Auto Receive Window is enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-36795?

CVE-2022-36795 is a medium-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 19 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In BIG-IP versions 17.0.x before 17.0.0.1, 16.1.x before 16.1.3.1, 15.1.x before 15.1.7, and 14.1.x before 14.1.5.1, when an LTM TCP profile with Auto Receive Window Enabled is configured on a virtual server, undisclosed traffic can cause the virtual server to stop processing new client connections.

Weakness: CWE-682

Which versions are affected by CVE-2022-36795?

It affects 11 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System and 5 more.

How do I fix CVE-2022-36795?

No fix has been published for CVE-2022-36795 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-36795 being exploited?

There is no known exploitation of CVE-2022-36795 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-3rhm-pw9f-4xg6.