CVE-2026-20942

VendormicrosoftProductedge chromiumDiscoveredOct 29, 2026UpdatedNov 3, 2026

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

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CVSS v3.1

4.3 MEDIUM

EPSS

0.64%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

Intelligence Reports1

1 intelligence report available

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CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

ScopeUNCHANGED

ConfidentialityLOW

IntegrityNONE

AvailabilityNONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Connections

2 relationships

CWE-1021

source

Timeline

disclosure → media coverage

Oct 29, 2026

Disclosure — published as a CVE record. · last revised by NVD Nov 3, 2026