CVE-2025-25567

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-25567
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,

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25567.pdf
https://lzydry.github.io/CVE-2025-25567/ Exploit
https://lzydry.github.io/CVE-2025-25567/ Exploit
Configurations

Configuration 1 (hide)

cpe:2.3:a:softether:vpn:5.02.5187:*:*:*:*:*:*:*
History

19 Jul 2025, 02:15

Type Values Removed Values Added
Summary (en) SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. (en) 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,
References
  • () https://filecenter.softether-upload.com/d/250715_001_79538/CVE-2025-25567.pdf -

02 Apr 2025, 20:36

Type Values Removed Values Added
References () https://lzydry.github.io/CVE-2025-25567/ - () https://lzydry.github.io/CVE-2025-25567/ - Exploit
CPE cpe:2.3:a:softether:vpn:5.02.5187:*:*:*:*:*:*:*
First Time Softether
Softether vpn

19 Mar 2025, 19:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
References () https://lzydry.github.io/CVE-2025-25567/ - () https://lzydry.github.io/CVE-2025-25567/ -
Summary
  • (es) SoftEther VPN 5.02.5187 es vulnerable al desbordamiento del búfer en Internat.c a través de la función UniToStrForSingleChars.
CWE CWE-120

12 Mar 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-12 16:15

Updated : 2025-07-19 02:15

NVD link : CVE-2025-25567

Mitre link : CVE-2025-25567

CVE.ORG link : CVE-2025-25567

JSON object : View

Products Affected

softether

  • vpn
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')