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Vulnerability of Fortinet FortiOS: buffer overflow via SSL VPN

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via SSL VPN of Fortinet FortiOS, in order to trigger a denial of service, and possibly to run code.
Impacted systems: FortiGate, FortiOS.
Severity of this alert: 2/4.
Creation date: 25/09/2020.
Références of this alert: CERTFR-2020-AVI-606, CVE-2020-12820, FG-IR-20-083, VIGILANCE-VUL-33425.

Description of the vulnerability 

An attacker can trigger a buffer overflow via SSL VPN of Fortinet FortiOS, in or...
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This threat impacts software or systems such as FortiGate, FortiOS.

Our Vigil@nce team determined that the severity of this computer threat is medium.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this cybersecurity bulletin.

Solutions for this threat 

This vulnerability workaround will be public soon.
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