Critical CVSS 8.8 2026-06 archive

Executive Summary

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an authorized attacker to perform spoofing over a network.

Overview

8.8
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
Category Spoofing
Released Jun 9 2026
Last Updated Jun 9 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
NVD CVSS 8.8 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.7

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Microsoft Edge (Chromium-based) () Critical Spoofing Unknown

Patches

1 patch
Article Type Restart
() Unknown

Known Exploits

Acknowledgments

Anonymous