CVE-2022-22207

Name: CVE-2022-22207
Creator: NVD / NIST
Published: 2022-07-20T15:15:08.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2022-22207 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A Use After Free vulnerability in the Advanced Forwarding Toolkit (AFT) manager process (aftmand) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a kernel crash due to intensive polling of Abstracted Fabric (AF) interface statistics and thereby a Denial of Service (DoS). Continued gathering of AF interface statistics will create a sustained Denial of Service (DoS) condition. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

A Use After Free vulnerability in the Advanced Forwarding Toolkit (AFT) manager process (aftmand) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a kernel crash due to intensive polling of Abstracted Fabric (AF) interface statistics and thereby a Denial of Service (DoS). Continued gathering of AF interface statistics will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on MX Series: 20.1 versions later than 20.1R1; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R2.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.67%

47.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions	Update
Juniper	Junos	20.1	R1-S1
Juniper	Junos	20.2	—
Juniper	Junos	20.3	—
Juniper	Junos	20.4	—
Juniper	Junos	21.1	—
Juniper	Junos	21.2	—

References

https://kb.juniper.net/JSA69711Vendor Advisory
https://kb.juniper.net/JSA69711Vendor Advisory

Timeline

Published: Jul 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-22207?

How severe is CVE-2022-22207?

CVE-2022-22207 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22207?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22207?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST