Out-of-bounds Read in SonicWall Global Vpn Client
CVE-2026-66151
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.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (1.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sonicwall Global Vpn Client — versions 4.10.8.1108 and earlier versions
Weakness classification (CWE)
References
- PSIRT@sonicwall.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-66151?
- CVE-2026-66151 is a medium-severity vulnerability in SonicWall Global Vpn Client, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-08-07.
- How severe is CVE-2026-66151?
- Medium severity. CVSS v3 base score is 5.5 out of 10.