What is CVE-2022-26891?

CVE-2022-26891 is a high-severity vulnerability in Microsoft Edge Chromium. CVSS score: 8.3/10. Published 2022-04-05.

How severe is CVE-2022-26891?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Microsoft Edge Chromium

CVE-2022-26891

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Published 2022-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.3th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

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

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26891 (vendor-advisory)

Frequently asked questions

What is CVE-2022-26891?: CVE-2022-26891 is a high-severity vulnerability in Microsoft Edge Chromium. CVSS score: 8.3/10. Published 2022-04-05.
How severe is CVE-2022-26891?: High severity. CVSS v3 base score is 8.3 out of 10.