All CVE records
CVE-2026-0257 — Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
Known ransomware use
CISA KEV listed
Added May 29, 2026 Remediate by June 1, 2026
Description
Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257
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