CVE-2023-22308

Public Exploit

Description

An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Third-Party Advisory talosintelligence.com
Affected: SoftEther VPN SoftEther VPN
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1737 third party advisory exploit
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1737

Frequently Asked Questions

What is the severity of CVE-2023-22308?
CVE-2023-22308 has been scored as a high severity vulnerability.
How to fix CVE-2023-22308?
To fix CVE-2023-22308, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-22308 being actively exploited in the wild?
It is possible that CVE-2023-22308 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22308?
CVE-2023-22308 affects SoftEther VPN SoftEther VPN.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.