CVE-2020-0991 Memory corruption in Microsoft Office
Attackers can execute arbitrary code remotely by exploiting improper memory handling in Microsoft Office applications.
- 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-2020-0991?
CVE-2020-0991 is a high-severity memory corruption vulnerability in Microsoft Office, published on 15 Apr 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
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka 'Microsoft Office Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0760.
Which versions are affected by CVE-2020-0991?
It affects 2 products.
Products include Microsoft Office, Microsoft Office 365 Proplus.
How do I fix CVE-2020-0991?
No fix has been published for CVE-2020-0991 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-0991 being exploited?
There is no known exploitation of CVE-2020-0991 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-c6pp-96qc-5hc5.