CVE-2026-59835 Information disclosure in FortiSandbox
Unauthenticated attackers can access VNC servers of scanning VMs, exposing sensitive analysis data and bypassing security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59835?
CVE-2026-59835 is a high-severity vulnerability in Fortinet Fortisandbox, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A exposure of resource to wrong sphere vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.3 through 4.4.8 may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests.
Weakness: CWE-668
Which versions are affected by CVE-2026-59835?
It affects 1 product.
Products include Fortinet Fortisandbox.
How do I fix CVE-2026-59835?
No fix has been published for CVE-2026-59835 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59835 being exploited?
There is no known exploitation of CVE-2026-59835 in the wild and no public exploit code.
Other vulnerabilities in Fortinet Fortisandbox
Sources
Also known as GHSA-8fjf-5954-r8w4.