Critical (9.8) in ivanti avalanche. EPSS 99% chance of exploitation in the next 30 days.
An attacker can send a specially crafted message to the Wavelink Avalanche Manager, which could result in service disruption or arbitrary code execution.
Thanks to a Researcher at Tenable for finding and reporting.
Fixed in version 6.4.1.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)