CVE-2021-31177

Published: May 11, 2021Modified: Nov 21, 2024

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD (Secondary)

Description

Microsoft Office Remote Code Execution Vulnerability

Affected (13)

Products: Microsoft: 365 Apps, Excel, Office, Office Online Server, Office Web Apps Server, Word

6 products

Office Online Server

Office Web Apps Server

Configuration A

13 vulnerable

Vulnerable Software	Affected Versions
Microsoft 365 Apps	All versions
Microsoft Excel	Version 2013 sp1
Microsoft Excel	Version 2013 sp1
Microsoft Excel	Version 2016
Microsoft Office	Version 2013 sp1
Microsoft Office	Version 2013 sp1
Microsoft Office	Version 2016
Microsoft Office	Version 2019
Microsoft Office Online Server	All versions
Microsoft Office Web Apps Server	Version 2013 sp1
Microsoft Word	Version 2013 sp1
Microsoft Word	Version 2013 sp1
Microsoft Word	Version 2016

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31177

Source: secure@microsoft.com

PatchVendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-576/

Source: secure@microsoft.com

Third Party Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31177

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-576/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.