SB2023112103 - Privilege escalation in Zyxel SecuExtender SSL VPN client for Windows
Published: November 21, 2023
Security Bulletin ID
SB2023112103
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2023-5593)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error. A local user can send a specially crafted CREATE message to trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.