CVE-2026-0257Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
CISA Known Exploited Vulnerabilities Data
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.
CISA Due Date
June 1, 2026 (federal agency requirement)
Known Ransomware Campaign Use
Unknown
Notes
https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257
External References
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Data sourced from the CISA Known Exploited Vulnerabilities catalog. CISA does not endorse any commercial product or service.