Description:

Microsoft released a security update to address multiple vulnerabilities in Microsoft Edge. A remote attacker could entice a user to open a web page with specially crafted content on a vulnerable browser to exploit the vulnerabilities.

Reports indicate that the arbitrary code execution vulnerability (CVE-2023-5217) is being exploited in the wild. System administrators and users are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

Affected Systems:

• Microsoft Edge prior to version 117.0.2045.47

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution on an affected system.

Recommendation:

System administrators and users of affected systems should update Microsoft Edge to version 117.0.2045.47 or later to address the issue. The details of the security update can be found at:
https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#september-29-2023

More Information:

• https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#september-29-2023
• https://www.hkcert.org/security-bulletin/microsoft-edge-multiple-vulnerabilities_20231003
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1999
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5186 (to CVE-2023-5187)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5217