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CVE-2026-50521ImportantRevised 2 Jul

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

MSRC advisory NVD CVE.org

Assessment

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

Severity
Important
CVSS base score
8.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
Impact
Remote Code Execution
EPSS, next 30 days
0.8%Higher than 55.6% of scored CVEs · FIRST model run 29 Sep 2026 · about EPSS
Public exploit code
No Nuclei template lists it
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
Microsoft Edge (Chromium-based)
Weakness
CWE-416: Use After Free
Issued by
Microsoft
Published
26 Jun 2026 · June 2026
Last revised
2 Jul 2026Added Edge software to the Security Updates table. Customers that are running supported version of Edge are encouraged to update to the indicated version to be protected from this vulnerability.

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Browser
1 affected product
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