CVE-2021-21978: VMware View Planner

Critical severity, CVSS 9.8. EPSS: 99% chance of exploitation in the next 30 days.

VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability. Improper input validation and lack of authorization leading to arbitrary file upload in logupload web application. An unauthorized attacker with network access to View Planner Harness could upload and execute a specially crafted file leading to remote code execution within the logupload container.

Affected products

• VMware View Planner: from 4.0, before 4.6 (fixed in 4.6); version 4.6 only

Published 2021-03-03. Last modified 2026-06-17.