Is CVE-2022-22231 actively exploited?

No active exploitation of CVE-2022-22231 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-22231 be exploited remotely?

Yes. CVE-2022-22231 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-22231?

CVE-2022-22231 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2022-22231

CWE-690Published: October 18, 2022· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

An Unchecked Return Value to NULL Pointer Dereference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS 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) and AntiVirus (AV) are enabled together and the system processes specific valid transit traffic the Packet Forwarding Engine (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. This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1.

NVD Source

Technical Analysis

CVE-2022-22231 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.