CVE-2026-58281: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
— 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-2026-58281?
CVE-2026-58281 has a high severity score of 8.3.
How do I fix CVE-2026-58281?
To address CVE-2026-58281, update Microsoft Edge to the latest version available.
What type of vulnerability is CVE-2026-58281?
CVE-2026-58281 is a remote code execution vulnerability caused by deserialization of untrusted data.
Who is affected by CVE-2026-58281?
Users of Microsoft Edge (Chromium-based) are affected by CVE-2026-58281.
What can happen if CVE-2026-58281 is exploited?
An attacker exploiting CVE-2026-58281 can execute arbitrary code on the victim's system over the network.