Out-of-bounds read in Microsoft products - CVE-2021-31174
Published: May 11, 2021 / Updated: June 22, 2021
Vulnerability identifier: #VU53112
CSH Severity: Low
CVSS v4 BT: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2021-31174
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in Microsoft Excel. A local user can trigger out-of-bounds read error and read contents of memory on the system.
Affected software
Microsoft Office
Microsoft Excel
Microsoft Office Web Apps Server
Office Online Server
Microsoft Excel
Microsoft Office Web Apps Server
Office Online Server
How to mitigate CVE-2021-31174
Install updates from vendor's website.