What is CVE-2025-25566?

CVE-2025-25566 is a medium-severity vulnerability in Softether Vpn, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.6/10. Published 2025-03-12.

How severe is CVE-2025-25566?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in Softether Vpn

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…

EPSS: 0.003 (20.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Softether Vpn — versions 5.02.5187
N/a — versions n/a

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

cve@mitre.org (Exploit)
cve@mitre.org

Frequently asked questions

What is CVE-2025-25566?: CVE-2025-25566 is a medium-severity vulnerability in Softether Vpn, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.6/10. Published 2025-03-12.
How severe is CVE-2025-25566?: Medium severity. CVSS v3 base score is 5.6 out of 10.