Use-after-free in Microsoft Windows and Windows Server - CVE-2020-1561
Published: August 11, 2020 / Updated: August 17, 2020
Vulnerability identifier: #VU45574
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1561
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within Microsoft Graphics Components when processing TTF fonts in fontdrvhost. A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2020-1561
Install update from vendor's website.