High [CVE-2026-59835] Unauthenticated VNC access exposed on all interfaces
This high-severity Fortinet advisory covers CVE-2026-59835 affecting FortiSandbox.
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Summary
CVSSv3 Score:
7.7
An Exposure of Resource to Wrong Sphere vulnerability [CWE-668] in FortiSandbox may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests.
Revised on 2026-07-14 00:00:00
- FortiSandbox 5.0: 5.0.0 through 5.0.2
- FortiSandbox 4.4: 4.4.3 through 4.4.8
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
- FortiSandbox 5.0: 5.0.3
- FortiSandbox 4.4: 4.4.9
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
Mitigation checklist
- Upgrade per the Affected/Solution table: FortiSandbox 5.0: 5.0.3; FortiSandbox 4.4: 4.4.9.
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
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