CVE-2023-32634

Name: CVE-2023-32634
Creator: NVD / NIST
Published: 2023-10-12T16:15:11.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2023-32634 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.

Metrics

CVSS 3.1

7.4/10

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

EPSS Probability

0.43%

34.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-300

Affected Software

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

References

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755Exploit, Third Party Advisory
https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755Exploit, Third Party Advisory
https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1755

Timeline

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

Frequently Asked Questions

What is CVE-2023-32634?

How severe is CVE-2023-32634?

CVE-2023-32634 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32634?

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-2023-32634?

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

Scan your code now

Source: NVD / NIST