Out-of-bounds read in Microsoft products - CVE-2021-31178

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Main Vulnerability Database Vulnerabilities #VU53072

Out-of-bounds read in Microsoft products - CVE-2021-31178

Published: May 11, 2021 / Updated: June 22, 2021


Vulnerability identifier: #VU53072
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-31178
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Microsoft
Affected software:
Microsoft Office
Microsoft Excel
Office Online Server
Microsoft Office Web Apps Server

Detailed vulnerability description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the Microsoft Office. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.


How to mitigate CVE-2021-31178

Install updates from vendor's website.

Sources