SB2025112001 - Remote denial of service in SonicOS SSLVPN
Published: November 20, 2025
Security Bulletin ID
SB2025112001
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
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-2025-40601)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the SonicOS SSLVPN interface. A remote attacker can send specially crafted packets to the SSLVPN interface, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.