CVE-2022-22232 Null dereference in Junos OS

What is CVE-2022-22232?

CVE-2022-22232 is a high-severity 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

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On SRX Series If Unified Threat Management (UTM) Enhanced Content Filtering (CF) is enabled and specific transit traffic is processed the PFE will crash and restart. This issue affects Juniper Networks Junos OS: 21.4 versions prior to 21.4R1-S2, 21.4R2 on SRX Series; 22.1 versions prior to 22.1R1-S1, 22.1R2 on SRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1.

Weakness: CWE-476

Which versions are affected by CVE-2022-22232?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2022-22232?

No fix has been published for CVE-2022-22232 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-22232 being exploited?

There is no known exploitation of CVE-2022-22232 in the wild and no public exploit code.

Other vulnerabilities in Juniper Junos

• CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Exploited Critical 9.8
• CVE-2020-1631 Juniper Junos OS Path Traversal Exploited High 8.8
• CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization Exploited Medium 6.7
• CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function Exploited Medium 5.3
• CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification Exploited Medium 5.3

All Juniper Junos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x4xg-wv45-67p3.