CVE-2022-0028 — Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability
Overview
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.
Vulnerability details
- CVE ID
- CVE-2022-0028
- Vulnerability
- Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability
- Vendor
- Palo Alto Networks
- Affected products
- Palo Alto Networks: PAN-OS
- Severity
- HIGH
- Exploitation status
- Actively exploited in the wild (CISA KEV)
- Published
- 2022-08-22
Remediation guidance
CVE-2022-0028 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.
Apply the vendor's official security update for Palo Alto Networks the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.
Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.
Authoritative references
Remediate CVE-2022-0028 — and stay ahead of the next one
CVE-2022-0028 is listed in the CISA KEV catalog as actively exploited — treat remediation as urgent. Scan your domain free to see whether CVE-2022-0028 and other Palo Alto Networks issues affect you and get a prioritized remediation report (full report from ₹999) — or stream the full feed of 1,600+ actively-exploited CVEs straight into your SOC.
📡 Get a free alert the moment a CVE like this lands in the KEV catalog → Join Sentinel APEX on Telegram