CVE-2021-31174 Microsoft Excel Information Disclosure Vulnerability
An attacker can exploit a memory corruption flaw in Microsoft Excel to disclose sensitive information from memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31174?
CVE-2021-31174 is a medium-severity vulnerability in Microsoft 365 Apps, published on 11 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft Excel Information Disclosure Vulnerability
Weakness: CWE-125
Which versions are affected by CVE-2021-31174?
It affects 5 products.
Products include Microsoft 365 Apps, Microsoft Excel, Microsoft Office, Microsoft Office Online Server, Microsoft Office Web Apps Server.
How do I fix CVE-2021-31174?
No fix has been published for CVE-2021-31174 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-31174 being exploited?
There is no known exploitation of CVE-2021-31174 in the wild and no public exploit code.
Other vulnerabilities in Microsoft 365 Apps
- CVE-2024-21413 Microsoft Outlook Improper Input Validation
- CVE-2023-23397 Microsoft Office Outlook Privilege Escalation
- CVE-2024-38189 Microsoft Project Remote Code Execution Vulnerability
- CVE-2023-35311 Microsoft Outlook Security Feature Bypass
- CVE-2026-21514 Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision
Sources
Also known as GHSA-h3gp-8jq6-jqxx.