CVE-2020-1380
Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
Published Aug 17, 2020 · updated Jun 16, 2026 · microsoft internet explorer
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.
Timeline
Detection, updates, and resolution for this record.
Aug 17, 2020 · Catalog
Detected
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 lo
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
May 3, 2022 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
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 lo
Required action
Apply updates per vendor instructions.
CISA due date May 3, 2022
Affected
- cpe microsoft/internet explorer11
- vendor Microsoft Internet Explorerversion unspecified
Sources
- CISA KEVCVE-2020-1380
Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.
cisa.gov - CVE.orgCVE-2020-1380
Official CVE identifier
cve.org - FIRST EPSSCVE-2020-1380
30-day exploitation probability 24.2%
first.org - NIST NVDCVE-2020-1380
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
nvd.nist.gov - Packet Storm Securityhttp://packetstormsecurity.com/files/163056/Internet-Explorer-jscript9.dll-Memory-Corruption.html
Packet Storm link already published on the finding.
packetstormsecurity.com