What’s Vulnerable › Vulnerabilities

CVE-2023-22325

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-12 · updated 2026-06-17
• Weakness: CWE-835

Description

A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Affected products

• SoftEther VPN: 4.41-9782-beta, 5.01.9674, 5.02

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736
• https://www.softether.org/9-about/News/904-SEVPN202301
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736
• https://www.softether.org/9-about/News/904-SEVPN202301
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1736

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