SB2025073051 - Remote denial of service in SonicOS SSL VPN
Published: July 30, 2025
Security Bulletin ID
SB2025073051
CSH 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 vulnerability.
1) Format string error (CVE-ID: CVE-2025-40600)
CWE-ID: CWE-134 - Use of Externally-Controlled Format String
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a format string error in the SonicOS SSL VPN interface. A remote attacker can supply a specially crafted input that contains format string specifiers and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.