Out-of-bounds read in SonicWall Global VPN client - CVE-2026-66151
Published: August 8, 2026
Vulnerability identifier: #VU141367
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-66151
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to out-of-bounds read in the SWIPsec.sys driver when processing local input. A local user can trigger the flaw to cause a denial of service.
Affected software
SonicWall Global VPN client
How to mitigate CVE-2026-66151
Install security update from vendor's website.
SonicWall Global VPN client - update to 5.0.0.2008