What’s Vulnerable › Vulnerabilities
CVE-2026-3439
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-04 · updated 2026-06-17
- Weakness: CWE-121
Description
A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall.
Affected products
- SonicWall SonicOS: before 7.3.2-7010; before 8.2.0-8009 — fixed in 7.3.2-7010, 8.2.0-8009
How to fix
Upgrade to a fixed version: SonicWall SonicOS 7.3.2-7010, 8.2.0-8009. Check the vendor advisory for mitigations.
References
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