Microsoft Edge Patches Multiple Chromium-Based Remote Code Execution Flaws

Microsoft has issued security advisories for a long-running series of remote code execution vulnerabilities affecting Microsoft Edge (Chromium-based), with disclosures spanning multiple product update cycles. The referenced flaws include CVE-2021-43221, CVE-2022-21929, CVE-2022-33636, CVE-2022-38012, CVE-2023-21775, CVE-2023-36008, CVE-2023-36022, CVE-2023-36034, CVE-2024-38210, CVE-2024-38219, CVE-2024-43496, CVE-2024-43578, CVE-2024-43596, CVE-2024-49023, CVE-2025-21408, CVE-2025-25000, CVE-2025-29834, and CVE-2025-60711, all tracked by Microsoft as Edge RCE issues.

The advisories indicate continued patching of browser-exposed attack surface in Edge, including several clusters of RCE fixes released on the same day, suggesting bundled security updates across versions. While the entries provided do not include technical synopses or exploitation details, the repeated publication of Edge RCE bulletins through Microsoft Update Guide and MSRC portal pages shows sustained remediation activity for code-execution bugs that could be triggered through malicious web content or browser processing components, reinforcing the need for rapid browser update deployment across enterprise fleets.