7.6 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.9%
A remote code execution vulnerability exists when Microsoft Edge improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that enables 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, an 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 that is designed to exploit the vulnerability through Microsoft Edge, and then convince a user to view the website. The attacker could also take advantage of compromised websites and 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 by way of enticement in an email or Instant Messenger message, or by getting them to open an attachment sent through email.
The security update addresses the vulnerability by modifying how Microsoft Edge handles objects in memory.
[
{
"vendor": "Microsoft",
"product": "Microsoft Edge (EdgeHTML-based)",
"cpes": [
"cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*"
],
"platforms": [
"Windows 10 Version 2004 for 32-bit Systems",
"Windows 10 Version 2004 for ARM64-based Systems",
"Windows 10 Version 2004 for x64-based Systems",
"Windows 10 Version 1803 for 32-bit Systems",
"Windows 10 Version 1803 for x64-based Systems",
"Windows 10 Version 1803 for ARM64-based Systems",
"Windows 10 Version 1809 for 32-bit Systems",
"Windows 10 Version 1809 for x64-based Systems",
"Windows 10 Version 1809 for ARM64-based Systems",
"Windows Server 2019",
"Windows 10 Version 1909 for 32-bit Systems",
"Windows 10 Version 1909 for x64-based Systems",
"Windows 10 Version 1909 for ARM64-based Systems",
"Windows 10 Version 1903 for 32-bit Systems",
"Windows 10 Version 1903 for x64-based Systems",
"Windows 10 Version 1903 for ARM64-based Systems"
],
"versions": [
{
"version": "1.0..0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
}
]
More
7.6 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
74.9%