CVE-2025-25567

9.8 criticalEPSS 0.6%

Critical (9.8) in softether vpn. EPSS 0.6% chance of exploitation in the next 30 days.

SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through the UI,

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: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2025-03-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

softether:vpn

References

https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25567.pdf
https://lzydry.github.io/CVE-2025-25567/
https://lzydry.github.io/CVE-2025-25567/

Check your stack JSON