CVE-2026-20942
Medium
Description
Improper restriction of rendered ui layers or frames in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Microsoft Edge Chromium
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-1021CWE-1021
How to fix
Update
- microsoft edge_chromium156.0.4314.42 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft edge_chromium | v < 156.0.4314.42 | 156.0.4314.42 |
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