CVE-2026-57986: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.4078.48
Event History
Frequently Asked Questions
What is the severity of CVE-2026-57986?
CVE-2026-57986 has a high severity rating of 7.5.
What is CVE-2026-57986?
CVE-2026-57986 is a remote code execution vulnerability in Microsoft Edge (Chromium-based) caused by use after free.
How do I fix CVE-2026-57986?
To fix CVE-2026-57986, ensure that you update Microsoft Edge to the latest version as recommended by Microsoft.
What platforms are affected by CVE-2026-57986?
CVE-2026-57986 affects Microsoft Edge (Chromium-based) on all platforms it is installed on.
What can an attacker do with CVE-2026-57986?
An unauthorized attacker can exploit CVE-2026-57986 to execute arbitrary code over a network.