CVE-2021-27085

Microsoft Internet Explorer Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

Internet Explorer Remote Code Execution Vulnerability

Una Vulnerabilidad de Ejecución de Código Remota de Internet Explorer

Microsoft Internet Explorer contains an unspecified vulnerability that allows for remote code execution.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-02-10 CVE Reserved
2021-03-11 CVE Published
2021-11-03 Exploited in Wild
2021-11-17 KEV Due Date
2024-07-29 EPSS Updated
2024-08-03 CVE Updated
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27085	2023-12-29

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	20h2 Search vendor "Microsoft" for product "Windows 10" and version "20h2"	-	Safe
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1803 Search vendor "Microsoft" for product "Windows 10" and version "1803"	-	Safe
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1809 Search vendor "Microsoft" for product "Windows 10" and version "1809"	-	Safe
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1909 Search vendor "Microsoft" for product "Windows 10" and version "1909"	-	Safe
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	2004 Search vendor "Microsoft" for product "Windows 10" and version "2004"	-	Safe
Microsoft Search vendor "Microsoft"	Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"	11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019"	-	-	Safe