CVE-2022-22237 Auth bypass in Junos OS

Medium 6.5 Published 18 Oct 2022 Updated 10 May 2025

Unauthenticated attackers can establish BGP or LDP sessions bypassing TCP-AO authentication, compromising network confidentiality and integrity.

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-2022-22237?

CVE-2022-22237 is a medium-severity authentication bypass vulnerability in Juniper Junos, published on 18 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Improper Authentication vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause an impact on confidentiality or integrity. A vulnerability in the processing of TCP-AO will allow a BGP or LDP peer not configured with authentication to establish a session even if the peer is locally configured to use authentication. This could lead to untrusted or unauthorized sessions being established. This issue affects Juniper Networks Junos OS: 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS Evolved.

Weakness: CWE-287

Which versions are affected by CVE-2022-22237?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2022-22237?

No fix has been published for CVE-2022-22237 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2022-22237 being exploited?

There is no known exploitation of CVE-2022-22237 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-5695-324m-jq3v.