November 3, 2021 · Applied Cybernetics Group
CVE-2020-0878 — Microsoft Edge and Internet Explorer
known ransomware use
Microsoft Edge and Internet Explorer Memory Corruption Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Microsoft
- Product
- Edge and Internet Explorer
- EPSS
- 84.2th percentile (score 0.027, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-0878
CISA short description
Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.
Required action
Apply updates per vendor instructions.