CVE-2021-3033: Palo Alto Networks Prisma Cloud

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

An improper verification of cryptographic signature vulnerability exists in the Palo Alto Networks Prisma Cloud Compute console. This vulnerability enables an attacker to bypass signature validation during SAML authentication by logging in to the Prisma Cloud Compute console as any authorized user. This issue impacts: All versions of Prisma Cloud Compute 19.11, Prisma Cloud Compute 20.04, and Prisma Cloud Compute 20.09; Prisma Cloud Compute 20.12 before update 1. Prisma Cloud Compute SaaS version is not impacted by this vulnerability.

Affected products

• Palo Alto Networks Prisma Cloud: version 19.11 only; version 20.04 only; version 20.09 only; version 20.12 only

Published 2021-02-10. Last modified 2026-06-17.