Stack-based buffer overflow in SonicOS - CVE-2026-0206

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Main Vulnerability Database Vulnerabilities #VU128472

Stack-based buffer overflow in SonicOS - CVE-2026-0206

Published: April 29, 2026


Vulnerability identifier: #VU128472
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-2026-0206
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: SonicWall
Affected software:
SonicOS

Detailed vulnerability description

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to stack-based buffer overflow in SonicOS when processing crafted input. A remote privileged user can send crafted input to cause a denial of service.


How to mitigate CVE-2026-0206

Install security update from vendor's website.

Sources