CVE-2025-25566

Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. NOTE: the Supplier disputes this because the behavior is limited to a single allocation of a few hundred bytes with a command-line tool.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.6 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
mitreCNA
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CISA-ADPADP
5.6 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
VendorProductVersion
softethervpn
5.02.5187
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25566.pdf
https://lzydry.github.io/CVE-2025-25566/