Vulnerability identifier: #VU10023

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SoftEther VPN
Server applications / Remote access servers, VPN

Vendor: SoftEther VPN Project

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to memory leak in OpenVPN server code. A remote attacker can trigger excessive memory exhaustion and cause the running server process to crash.

Mitigation
Update to version 4.25 Build 9656.

Vulnerable software versions

SoftEther VPN: 4.03 - 4.25

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External links
http://www.softether.org/5-download/history

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.