Multiple vulnerabilities in Microsoft Browser

Description

Multiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. Integer underflow vulnerability in Dawn can be exploited to cause denial of service.
2. Out of bounds memory read and write vulnerability in WebAudio can be exploited to cause denial of service.

Original advisories

• CVE-2026-4453

• CVE-2026-4459

Exploitation

Public exploits exist for this vulnerability.

Related products

• Microsoft-Edge

CVE list

• CVE-2026-4453
  warning
• CVE-2026-4459
  critical

KB list

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