peter bassill · operator
$ cve CVE-2020-1380 JSON

CVE-2020-1380 KEV

7.8
HIGH · CVSS 3.1 · EPSS 24.2% (pctl 98)

Patch first

On CISA KEV — known exploited in the wild, due 2022-05-03.

Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.

Scoring

CVSS7.8 (HIGH, v3.1)
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS24.19% — more likely to be exploited than 98% of all CVEs
WeaknessCWE-787
On CISA KEVyes — remediate by 2022-05-03
Public exploitnone known
Published2020-08-17
Last modified2026-06-17

CISA KEV

NameMicrosoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
Added2021-11-03
Due2022-05-03
Vendor / productMicrosoft / Internet Explorer
Ransomware usenone reported

Affected (16)

VendorProduct
microsoftinternet explorer
microsoftwindows 10 1507
microsoftwindows 10 1607
microsoftwindows 10 1709
microsoftwindows 10 1803
microsoftwindows 10 1809
microsoftwindows 10 1903
microsoftwindows 10 1909
microsoftwindows 10 2004
microsoftwindows 7
microsoftwindows 8.1
microsoftwindows rt 8.1
microsoftwindows server 2008
microsoftwindows server 2012
microsoftwindows server 2016
microsoftwindows server 2019

References

→ the Explorer  ·  watch your stack  ·  NVD