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CVE-2026-20942

Microsoft Edge (Chromium-based) Spoofing Vulnerability

CVSS 3.1 4.3 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 30 Oct 2026 22:45:26 UTC. Read the latest advisory.

cve-program · CVE-2026-20942

Published

Improper restriction of rendered ui layers or frames in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-20942

Published

Microsoft Edge (Chromium-based) Spoofing Vulnerability

Improper restriction of rendered ui layers or frames in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Source published
29 Oct 2026 15:21:46 UTC
Source modified
30 Oct 2026 19:15:02 UTC
Saved here
30 Oct 2026 22:45:26 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Nov 10:21 UTC · 268 of 275 readable · 264 fully read · documentation 469/469 current

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