CVE-2020-1581 Microsoft Office Click-to-Run Elevation of Privilege Vulnerability
An attacker with local code execution can elevate privileges by exploiting improper memory handling in Microsoft Office Click-to-Run components.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-1581?
CVE-2020-1581 is a high-severity vulnerability in Microsoft 365 Apps, published on 17 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) components handle objects in memory. An attacker who successfully exploited the vulnerability could elevate privileges. The attacker would need to already have the ability to execute code on the system. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle objects in memory.
Which versions are affected by CVE-2020-1581?
It affects 2 products.
Products include Microsoft 365 Apps, Microsoft Office.
How do I fix CVE-2020-1581?
No fix has been published for CVE-2020-1581 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1581 being exploited?
There is no known exploitation of CVE-2020-1581 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-wpjv-j566-pfwc.