CVE-2021-42126: Ivanti Avalanche

High severity, CVSS 8.8. EPSS: 4% chance of exploitation in the next 30 days.

An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.

Affected products

• Ivanti Avalanche: before 6.3.3 (fixed in 6.3.3)

Published 2021-12-07. Last modified 2026-06-17.