What is CVE-2023-31192?

CVE-2023-31192 is a medium-severity vulnerability in Softether Vpn, classified under CWE-457. CVSS score: 5.3/10. Published 2023-10-12.

How severe is CVE-2023-31192?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Softether Vpn

CVE-2023-31192

An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Published 2023-10-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Softether Vpn — versions 5.01.9674
Softether Vpn — versions 5.01.9674

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2023-1768 (Exploit, Third Party Advisory)
www.softether.org/9-about/News/904-SEVPN202301 (Patch, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-31192?: CVE-2023-31192 is a medium-severity vulnerability in Softether Vpn, classified under CWE-457. CVSS score: 5.3/10. Published 2023-10-12.
How severe is CVE-2023-31192?: Medium severity. CVSS v3 base score is 5.3 out of 10.