CVE-2023-22325

Name: CVE-2023-22325
Creator: NVD / NIST
Published: 2023-10-12T16:15:10.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2023-22325 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.9/10

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

EPSS Probability

0.80%

52.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Softether	Vpn	4.41-9782	Beta
Softether	Vpn	5.01.9674	—
Softether	Vpn	5.02	—

References

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736Exploit, Third Party Advisory
https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736Exploit, Third Party Advisory
https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1736

Timeline

Published: Oct 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22325?

How severe is CVE-2023-22325?

CVE-2023-22325 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22325?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-22325?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST