CVE-2026-66152 Path traversal in NetExtender
An attacker can exploit a path traversal flaw in the SonicWall NetExtender Linux client to write arbitrary files as root, leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-66152?
CVE-2026-66152 is a high-severity path traversal vulnerability in SonicWall NetExtender, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A Path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component allows an attacker to write arbitrary file as root.
Weakness: CWE-29
Which versions are affected by CVE-2026-66152?
How do I fix CVE-2026-66152?
No fix has been published for CVE-2026-66152 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-2026-66152 being exploited?
There is no known exploitation of CVE-2026-66152 in the wild and no public exploit code.
Sources
Also known as GHSA-m35m-jcr7-2pvw.