What is CVE-2024-43577?

CVE-2024-43577 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under CWE-449. CVSS score: 4.3/10. Published 2024-10-18.

How severe is CVE-2024-43577?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Microsoft Edge Chromium

CVE-2024-43577

Microsoft Edge (Chromium-based) Spoofing Vulnerability

Published 2024-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.5th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

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

Weakness classification (CWE)

CWE-449

References

Microsoft Edge (Chromium-based) Spoofing Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-43577?: CVE-2024-43577 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under CWE-449. CVSS score: 4.3/10. Published 2024-10-18.
How severe is CVE-2024-43577?: Medium severity. CVSS v3 base score is 4.3 out of 10.