High Threat Security Alert (A23-11-21): Multiple Vulnerabilities in Microsoft Edge

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 remote code execution vulnerability (CVE-2023-6345) 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 119.0.2151.97

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution, denial of service, security restriction bypass or tampering on an affected system.

Recommendation:

System administrators and users of affected systems should update Microsoft Edge to version 119.0.2151.97 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#november-29-2023

More Information:

• https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#november-29-2023
• https://www.hkcert.org/security-bulletin/microsoft-edge-multiple-vulnerabilities_20231130
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6345 (to CVE-2023-6348)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6350 (to CVE-2023-6351)