Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability

Added to KEV
2022-08-22
Federal due date
2022-09-12
Vendor
Palo Alto Networks
Product
PAN-OS
EPSS
89.5th percentile (score 0.047, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-0028

CISA short description

A Palo Alto Networks PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.