Heap-based buffer overflow in SoftEther VPN - CVE-2023-27395
Published: July 3, 2023
Vulnerability identifier: #VU77842
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-27395
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the DDNS client functionality. A remote attacker can perform a man-in-the-middle attack, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
SoftEther VPN
How to mitigate CVE-2023-27395
Install updates from vendor's website.
SoftEther VPN - update to 4.42 9798