CVE-2026-0206: SonicWall SonicOS

Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days.

A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.

Affected products

• SonicWall SonicOS: before 6.5.5.2-28n (fixed in 6.5.5.2-28n); from 7.0.0.0, up to and including 7.0.1-5169; from 7.1.1-7040, before 7.3.2-7010 (fixed in 7.3.2-7010); from 8.0.0-8035, before 8.2.0-8009 (fixed in 8.2.0-8009)

Published 2026-04-29. Last modified 2026-06-17.