High Threat Security Alert (A26-04-04): Multiple Vulnerabilities in Microsoft Edge

Description:

Microsoft has released security updates 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 indicated that a remote code execution vulnerability (CVE-2026-5281) is being exploited in the wild. System administrators 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 146.0.3856.97

Impact:

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

Recommendation:

System administrators and users of affected systems should update Microsoft Edge to version 146.0.3856.97 or later to address the issue.

More Information:

• https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#april-01-2026
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5272 (to CVE-2026-5277)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5279 (to CVE-2026-5281)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5283 (to CVE-2026-5287)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5289 (to CVE-2026-5291)