Improper restriction of rendered ui layers or frames in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Fix
Microsoft's update · Low
- Release Notes — Microsoft Edge (Chromium-based) · build 156.0.4314.42
From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-29 · Exploitation Less Likely.
Patch, vendor advisory and mitigation references on NVD 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20942 vendor-advisory, patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 4.3 · microsoftNVD modified 2026-10-29 15:21
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20942 vendor-advisory, patch