CVE-2020-17126 Microsoft Excel Information Disclosure Vulnerability
An attacker can exploit this vulnerability in Microsoft Excel to disclose sensitive information to unauthorized users.
- 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-2020-17126?
CVE-2020-17126 is a medium-severity vulnerability in Microsoft 365 Apps, published on 9 Dec 2020. 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
Which versions are affected by CVE-2020-17126?
It affects 5 products.
Products include Microsoft 365 Apps, Microsoft Excel, Microsoft Office, Microsoft Office Online Server, Microsoft Office Web Apps.
How do I fix CVE-2020-17126?
No fix has been published for CVE-2020-17126 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-17126 being exploited?
There is no known exploitation of CVE-2020-17126 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-xc28-qh5q-f492.