CVE-2026-66151

Out-of-Bounds Read in SonicWall Global VPN Client SWIPsec.sys Leads to System Crash

Published Aug 7, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
SonicWall Global VPN Client version 4.10.8.1108 and earlier is vulnerable to an out-of-bounds kernel memory read in the SWIPsec.sys driver, which could allow a local attacker to cause a system crash.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Out-of-Bounds Read in SonicWall Global VPN Client SWIPsec.sys Leads to System Crash
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Sonicwall
Sonicwall global Vpn Client
Vendors & Products Sonicwall
Sonicwall global Vpn Client
Type Values Removed Values Added
Description SonicWall Global VPN Client version 4.10.8.1108 and earlier is vulnerable to an out-of-bounds kernel memory read in the SWIPsec.sys driver, which could allow a local attacker to cause a system crash.
Weaknesses CWE-125
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
sonicwall
Published
Updated
Aug 11, 2026, 7:29 PM
Reserved
Jul 24, 2026, 8:34 AM
Status
Awaiting Analysis
Published
Aug 7, 2026, 8:16 PM
Modified
Oct 24, 2026, 4:10 PM