{"cvss":0.0,"datePublished":"2026-05-29","dateUpdated":"2026-05-29","description":"Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.","dueDate":"2026-06-01","id":"CVE-2026-0257","kev_catalogs":["cisa"],"knownRansomwareCampaignUse":"Known","notes":"https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257","product":"PAN-OS","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","severity":"CRITICAL","source":"cisa_known_exploited","title":"Palo Alto Networks PAN-OS Authentication Bypass Vulnerability","vendor":"Palo Alto Networks"}