What is CVE-2023-28286?

CVE-2023-28286 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under Protection Mechanism Failure. CVSS score: 6.1/10. Published 2023-04-27.

How severe is CVE-2023-28286?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Microsoft Edge Chromium

CVE-2023-28286

Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

Published 2023-04-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Microsoft Edge Chromium
Microsoft Edge (Chromium-Based) — versions 1.0.0
Microsoft Edge (Chromium-Based) Extended Stable — versions 1.0.0

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28286 (vendor-advisory, Patch, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-28286?: CVE-2023-28286 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under Protection Mechanism Failure. CVSS score: 6.1/10. Published 2023-04-27.
How severe is CVE-2023-28286?: Medium severity. CVSS v3 base score is 6.1 out of 10.