CVE-2025-25568
SoftEther VPN Server vulnerability analysis and mitigation

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).


SourceNVD

Related SoftEther VPN Server vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-25568CRITICAL9.8
  • SoftEther VPN Server logoSoftEther VPN Server
  • cpe:2.3:a:softether:vpn
NoNoMar 12, 2025
CVE-2025-25567CRITICAL9.8
  • SoftEther VPN Server logoSoftEther VPN Server
  • cpe:2.3:a:softether:vpn
NoNoMar 12, 2025
CVE-2025-25565CRITICAL9.8
  • SoftEther VPN Server logoSoftEther VPN Server
  • cpe:2.3:a:softether:vpn
NoNoMar 12, 2025
CVE-2026-39312HIGH7.5
  • SoftEther VPN Server logoSoftEther VPN Server
  • cpe:2.3:a:softether:see.sys
NoNoApr 07, 2026
CVE-2025-25566MEDIUM5.6
  • SoftEther VPN Server logoSoftEther VPN Server
  • cpe:2.3:a:softether:vpn
NoNoMar 12, 2025

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