Out-of-bounds read in SonicOS - CVE-2026-0402
Published: February 24, 2026
Vulnerability identifier: #VU123199
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-0402
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: SonicWall
Affected software:
SonicOS
SonicOS
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service attack.
The vulnerability exists due to a boundary condition. A remote privileged user can trigger an out-of-bounds read error and perform a denial of service attack.
How to mitigate CVE-2026-0402
Install updates from vendor's website.