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Vulnerability of Sophos XG Firewall 17: buffer overflow via User Portal

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via User Portal of Sophos XG Firewall 17, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Sophos XG Series.
Severity of this announce: 2/4.
Creation date: 30/06/2020.
Références of this computer vulnerability: CVE-2020-15069, VIGILANCE-VUL-32647.

Description of the vulnerability 

An attacker can trigger a buffer overflow via User Portal of Sophos XG Firewall ...
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This security vulnerability impacts software or systems such as Sophos XG Series.

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

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

An attacker with a expert ability can exploit this security note.

Solutions for this threat 

Workarounds for this vulnerability are not yet public.
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