CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
98.4%
Microsoft Exchange Server Elevation of Privilege Vulnerability
Recent assessments:
Assessed Attacker Value: 0
Assessed Attacker Value: 0Assessed Attacker Value: 0
packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34523
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34523
redmondmag.com/articles/2021/08/24/proxyshell-exchange-server-flaw.aspx
www.zerodayinitiative.com/advisories/ZDI-21-822/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
98.4%