Microsoft: >> Internet Explorer >> 9 Security Vulnerabilities
Scripting Engine Memory Corruption Vulnerability
CVSS Score
7.5
EPSS Score
0.345
Published
2021-05-11
CVE-2021-26411
Internet Explorer Memory Corruption Vulnerability
Known exploited
CVSS Score
8.8
EPSS Score
0.896
Published
2021-03-11
CVE-2020-0878
<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to 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.</p>
<p>An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, 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. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment.</p>
<p>The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.</p>
Known exploited
CVSS Score
4.2
EPSS Score
0.233
Published
2020-09-11
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.
An attacker could execute arbitrary code in the context of 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 HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.
The security update addresses the vulnerability by modifying how MSHTML engine validates input.
CVSS Score
4.2
EPSS Score
0.013
Published
2020-08-17
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.
CVSS Score
7.5
EPSS Score
0.042
Published
2020-08-17
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'VBScript Remote Code Execution Vulnerability'.
CVSS Score
7.5
EPSS Score
0.062
Published
2020-07-14
An information disclosure vulnerability exists when Internet Explorer improperly handles objects in memory, aka 'Internet Explorer Information Disclosure Vulnerability'.
CVSS Score
5.3
EPSS Score
0.037
Published
2020-06-09
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'VBScript Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1213, CVE-2020-1214, CVE-2020-1215, CVE-2020-1216, CVE-2020-1260.
CVSS Score
7.5
EPSS Score
0.047
Published
2020-06-09
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'VBScript Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1214, CVE-2020-1215, CVE-2020-1216, CVE-2020-1230, CVE-2020-1260.
CVSS Score
7.5
EPSS Score
0.025
Published
2020-06-09
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'VBScript Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1213, CVE-2020-1215, CVE-2020-1216, CVE-2020-1230, CVE-2020-1260.
CVSS Score
7.5
EPSS Score
0.062
Published
2020-06-09
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