SB2023031558 - Remote code execution in Kerio Connect
Published: March 15, 2023 Updated: June 8, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2023-25267)
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the 2FASetup function when processing an authenticated request with a long primaryEMailAddress field to the webmail/api/jsonrpc URI. A remote authenticated user can send a specially crafted HTTP request to the webmail interface, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.