A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014
https://thehackernews.com/2026/11/cisa-flags-sonicwall-sonicos-mfa-bypass.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-118423
Source: Mitre, NVD
Published: 2026-11-06
Updated: 2026-11-06
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.00595