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CVE-2025-21404

17
FAUCET Score

CVE-2025-21404 is a medium-severity spoofing vulnerability affecting Microsoft Edge (Chromium-based). An attacker could exploit this by tricking a user into interacting with a specially crafted website, leading to a low impact on integrity without affecting confidentiality or availability. While there are no known public exploits or active exploitation, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape. Organizations should monitor for official patches from Microsoft to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 133.0.3065.51CPE matchmatch criteria
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 73rd percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 133.0.3065.51
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2025-Feb/CVE-2025-21404Low

Microsoft Edge (Chromium-based) Spoofing Vulnerability

Feb 11, 2025

References

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