CVE-2021-30642: Symantec Security Analytics

Critical severity, CVSS 9.8. EPSS: 2.7% chance of exploitation in the next 30 days.

An input validation flaw in the Symantec Security Analytics web UI 7.2 prior 7.2.7, 8.1, prior to 8.1.3-NSR3, 8.2, prior to 8.2.1-NSR2 or 8.2.2 allows a remote, unauthenticated attacker to execute arbitrary OS commands on the target with elevated privileges.

Affected products

• Symantec Security Analytics: from 7.2, before 7.2.7 (fixed in 7.2.7); from 8.1, before 8.1.3-nsr3 (fixed in 8.1.3-nsr3); from 8.2, before 8.2.2 (fixed in 8.2.2)

Published 2021-04-27. Last modified 2026-06-17.