CVE-2021-31178
vulnerability analysis and mitigation

Overview

Microsoft Office Information Disclosure Vulnerability (CVE-2021-31178) was disclosed on May 11, 2021. This vulnerability affects various Microsoft Office products including Microsoft 365 Apps Enterprise, Excel 2013/2016, Office 2013/2016/2019, and Office Online Server (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. The vulnerability is classified under CWE-191 (Integer Underflow) category (NVD).

Impact

This vulnerability could allow information disclosure if exploited successfully. The attack requires user interaction but does not require elevated privileges (NVD).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability. The fixes are available through Microsoft Update and can be obtained via the Microsoft Update Catalog (Microsoft Support).

Additional resources


SourceThis report was generated using AI

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management