CVE-2025-25568: Softether VPN

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function. NOTE: the Supplier disputes this because the use-after-free is not in the VPN software, but is instead in a separate tool that has no untrusted input and runs under the user's own privileges (it is a stress-testing tool for a networking stack).

Affected products

• Softether VPN: version 5.02.5187 only

Published 2025-03-12. Last modified 2026-06-17.