CVE-2023-25774

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A denial-of-service vulnerability exists in the vpnserver ConnectionAccept() functionality of SoftEther VPN 5.02. A set of specially crafted network connections can lead to denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
SoftEther VPN	SoftEther VPN	5.01.9674; 5.02
softether	vpn	5.01.9674
softether	vpn	5.02

References

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1743Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1743Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1743

Timeline

Published: Oct 12, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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