Vulnerability CVE-2021-31177
Published: 2021-05-11

Description:
Microsoft Office Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-31175, CVE-2021-31176, CVE-2021-31179.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Microsoft -> 365 apps 
Microsoft -> Excel 
Microsoft -> Office 
Microsoft -> Office online server 
Microsoft -> Office web apps server 
Microsoft -> WORD 

 References:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31177
https://www.zerodayinitiative.com/advisories/ZDI-21-576/
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