CVE-2026-0257

CriticalKnown Exploited

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to…

palo_alto·CWE-565·Published 2026-05-13

CVSS

9.1

EPSS

0.19

KEV

Yes

Exploits

cve.orgen

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Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues.

NVDen

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CVSS metrics across sources

Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	NVD	9.1	3.9	5.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0	Primary	cve.org	7.8	—	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:A/AU:N/R:A/V:D/RE:M/U:Red
4.0	Secondary	NVD	7.8	—	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:A/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:A/V:D/RE:M/U:Red