CVE-2026-0227
PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal
MEDIUM 6.6EPSS 0.7%
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
- Affected
- Palo Alto Networks · Cloud NGFW · PAN-OS · Prisma Access
- CVSS v4.0 PALOALTONETWORKS
- 6.6 MEDIUM
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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:D/RE:M/U:Amber - CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.74% chance of exploitation in the next 30 days, 54th percentile
- Published
- 2026-01-15
- Updated
- 2026-01-30
Proof-of-concept exploits (1)
- TeeyaR/CVE-2026-0227-Palo-Alto3★ · 2026-01-20