OnlyFm252
Internet Explorer

CVE-2020-0824 — Internet Explorer Memory Corruption Vulnerability

Critical CVSS 7.5 EPSS 0.07031 2020-03 archive

Executive Summary

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. 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, the attacker 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. An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by an enticement in an email or instant message, or by getting the user to open an attachment sent through email. The security update addresses the vulnerability by modifying how Internet Explorer handles objects in memory.

Overview

7.5
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Mar 10 2020
Last Updated Mar 10 2020
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.07031 — 0.93355 percentile
NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7

EPSS Score

0.07031
probability of exploitation in the next 30 days
0.93355 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

22 affected products
Product KB Article Severity Impact Restart Required
Internet Explorer 11 on Windows 10 for 32-bit Systems 4540693 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 for x64-based Systems 4540693 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems 4540670 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems 4540670 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4540681 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems 4540681 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4540681 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4540689 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems 4540689 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4540689 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems 4538461 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems 4538461 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems 4538461 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems 4540673 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 4540688 (Monthly Rollup) 4540671 (IE Cumulative) Critical Remote Code Execution 4537820 4537767 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540688 4540671 Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 4540688 (Monthly Rollup) 4540671 (IE Cumulative) Critical Remote Code Execution 4537820 4537767 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540688 4540671 Internet Explorer 11 on Windows 8.1 for 32-bit systems 4540671 (IE Cumulative) 4541509 (Monthly Rollup) Critical Remote Code Execution 4537767 4537821 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540671 4541509 Internet Explorer 11 on Windows 8.1 for x64-based systems 4540671 (IE Cumulative) 4541509 (Monthly Rollup) Critical Remote Code Execution 4537767 4537821 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540671 4541509 Internet Explorer 11 on Windows RT 8.1 4541509 (Monthly Rollup) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4540688 (Monthly Rollup) 4540671 (IE Cumulative) Moderate Remote Code Execution 4537820 4537767 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540688 4540671 Internet Explorer 11 on Windows Server 2012 4540671 (IE Cumulative) 4541510 (Monthly Rollup) Moderate Remote Code Execution 4537767 4537814 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540671 4541510 Internet Explorer 11 on Windows Server 2012 R2 4540671 (IE Cumulative) 4541509 (Monthly Rollup) Moderate Remote Code Execution 4537767 4537821 Base: 6.4 Temporal: 5.8 Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes 4540671 4541509 Internet Explorer 11 on Windows Server 2016 4540670 (Security Update) Moderate Remote Code Execution Yes
Internet Explorer 11 on Windows Server 2019 4538461 (Security Update) Moderate Remote Code Execution Yes

Patches

7 patches
Article Type Restart
4540693 Security Update Yes
4540670 Security Update Yes
4540681 Security Update Yes
4540689 Security Update Yes
4538461 Security Update Yes
4540673 Security Update Yes
4541509 Monthly Rollup Yes

Known Exploits

Acknowledgments

Qihoo 360 Vulcan Team

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