Microsoft Edge (Chromium-based) Spoofing Vulnerability

published 2025-02-06 21 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2464

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

Patch / fix

fixed in 1 links 1

Microsoft Microsoft Edge (Chromium-based) 133.0.3065.51

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21404 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 20 mo ago (2025-02-10)

Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

Microsoft Microsoft Edge (Chromium-based)

Classification

Weakness

CWE-449 The UI Performs the Wrong Action
CWE-451 User Interface (UI) Misrepresentation of Critical Information

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2025-21404
vendor-advisory, patch

Sources

CVE List CVE-2025-21404
NVD CVE-2025-21404

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary