9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.967 High
EPSS
Percentile
99.7%
A remote code execution vulnerability was found in Microsoft Products (Extended Support Update). Malicious users can exploit this vulnerability to execute arbitrary code.
Public exploits exist for this vulnerability.
Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.
CVE-2021-34527 critical
Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)
Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.
Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.
support.microsoft.com/kb/5004951
support.microsoft.com/kb/5004953
support.microsoft.com/kb/5004955
support.microsoft.com/kb/5004959
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-34527
statistics.securelist.com/
threats.kaspersky.com/en/class/Exploit/
threats.kaspersky.com/en/product/Microsoft-Windows-10/
threats.kaspersky.com/en/product/Microsoft-Windows-7/
threats.kaspersky.com/en/product/Microsoft-Windows-8/
threats.kaspersky.com/en/product/Microsoft-Windows-Server-2008/
threats.kaspersky.com/en/product/Microsoft-Windows-Server-2012/
threats.kaspersky.com/en/product/Microsoft-Windows-Server/
threats.kaspersky.com/en/product/Microsoft-Windows/
threats.kaspersky.com/en/product/Windows-RT/
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.967 High
EPSS
Percentile
99.7%