Advisoriesby IbisPalo Alto NetworksCVE-2026-0283
Palo Alto Networks PAN-OS: authentication bypass
Fix: upgrade to 12.1.8 or later (4 fixed versions below)
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| PAN-OS Product | >= 12.1.0, < 12.1.8 | 12.1.8 |
| >= 11.2.0, < 11.2.13 | 11.2.13 | |
| >= 11.1.0, < 11.1.16 | 11.1.16 | |
| >= 10.2.0, < 10.2.18-h8 | 10.2.18-h8 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/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:N/R:U/V:D/RE:M/U:Amber
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-306