CVE-2026-3439

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

Score

CVSS 3.1 4.9 Medium

Status

Analyzed - PSIRT@sonicwall.com

Published

2026-03-04

Last modified

2026-03-04

Weaknesses

CWE-121

Affected products

• Sonicos (Sonicwall)

References

• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001