Improper Check for Unusual or Exceptional Conditions in Junos OS - CVE-2022-22171
Published: January 12, 2022
Vulnerability identifier: #VU59566
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-22171
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to preform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling in the Packet Forwarding Engine (PFE). A remote attacker can send specially crafted packets over VXLAN and perform a denial of service (DoS) attack by resetting FPC.
Affected software
Junos OS
How to mitigate CVE-2022-22171
Install updates from vendor's website.
Junos OS - addressed in versions 19.4R3-S7, 20.1R3-S3, 20.2R3-S3, 20.3R3-S2, 20.4R3-S1, 21.1R3, 21.2R2, 21.3R1-S1, 21.3R2, 21.4R1