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Vulnerability record · CVE-2026-21223 · published 16 January 2026

CVE-2026-21223: Microsoft edge chromium improper privilege management vulnerability

Microsoft · Edge Chromium

Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.

7.1 CVSS 3.1 High EPSS 0.28% · top 82.0% CWE-269 · Improper privilege management
7.1CVSS 3.1 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-21223), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.