SB2023031558 - Remote code execution in Kerio Connect



SB2023031558 - Remote code execution in Kerio Connect

Published: March 15, 2023 Updated: June 8, 2025

Security Bulletin ID SB2023031558
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • 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.