ACTIVELY EXPLOITED

CVE-2020-1380: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

Facts
VendorMicrosoft
ProductInternet Explorer
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline3 May 2022
Weakness (CWE)CWE-787

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.