CVE-2026-0205 Path traversal in SonicOS

What is CVE-2026-0205?

CVE-2026-0205 is a medium-severity path traversal vulnerability in Sonicwall Sonicos, published on 29 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually restricted services.

Weakness: CWE-35

Which versions are affected by CVE-2026-0205?

It affects 1 product.

Products include Sonicwall Sonicos.

How do I fix CVE-2026-0205?

No fix has been published for CVE-2026-0205 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-0205 being exploited?

There is no known exploitation of CVE-2026-0205 in the wild and no public exploit code.

Other vulnerabilities in Sonicwall Sonicos

• CVE-2020-5135 SonicWall SonicOS Buffer Overflow Exploited Critical 9.8
• CVE-2024-40766 SonicWall SonicOS Improper Access Control Exploited Critical 9.3
• CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication Exploited High 8.2
• CVE-2025-40600 Denial of service in SonicOS Critical 9.8
• CVE-2024-22394 Auth bypass in SonicOS Critical 9.8

All Sonicwall Sonicos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7w3q-56fr-6g8c.