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cve-2026-0257

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CVE-2026-0257 is a disclosed vulnerability in Palo Alto Networks PAN-OS affecting GlobalProtect portal and gateway configurations. Exploitation attempts have been observed against unpatched devices. For WindowsForum's IT audience, the priority is to identify exposed GlobalProtect deployments, verify authentication override cookies and certificate configurations, and apply fixed PAN-OS releases. The vulnerability highlights the risk of VPN trust boundaries being compromised, making it critical for sysadmins to audit their GlobalProtect setups and patch promptly.
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    CVE-2026-0257 GlobalProtect: Patch PAN-OS and Audit Trust-Boundary Risk

    Palo Alto Networks disclosed CVE-2026-0257 on May 13, 2026, then updated the advisory on May 29 after exploitation attempts were observed against unpatched PAN-OS devices running GlobalProtect portal or gateway configurations without mitigations. For WindowsForum’s sysadmin and IT-pro audience...
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    • cve-2026-0257 globalprotect pan-os windows security
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