SRX Series: If Unified Threat Management (UTM) Enhanced Content Filtering (CF) is enabled and specific traffic is processed the PFE will crash

published 2022-10-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-27379

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Juniper Networks Junos OS 21.4R1-S2, 21.4R2, 22.1R1-S1, 22.1R2

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-05-09)

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Juniper Networks Junos OS

Classification

Weakness

CWE-476 NULL Pointer Dereference

References

kb.juniper.net /JSA69886
vendor-advisory

Sources

CVE List CVE-2022-22232
NVD CVE-2022-22232

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Summary