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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.549 Medium
EPSS
Percentile
97.7%
A remote code execution vulnerability exists when Microsoft Edge PDF Reader improperly handles 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.
To exploit the vulnerability, in a web-based attack scenario, an attacker could host a website that contains malicious PDF content. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted PDF 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. For example, an attacker could trick a user into clicking a link that takes the user to the attackerâs site.
The security update addresses the vulnerability by modifying how Microsoft Edge PDF Reader 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 1709 for 32-bit Systems",
"Windows 10 Version 1709 for x64-based Systems",
"Windows 10 Version 1709 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",
"Windows 10 for 32-bit Systems",
"Windows 10 for x64-based Systems",
"Windows 10 Version 1607 for 32-bit Systems",
"Windows 10 Version 1607 for x64-based Systems",
"Windows Server 2016"
],
"versions": [
{
"version": "1.0..0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
}
]
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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 High
AI Score
Confidence
High
0.549 Medium
EPSS
Percentile
97.7%