CVE-2020-0979 Memory corruption in Office 365 ProPlus
Attackers can execute arbitrary code by exploiting improper memory handling in Microsoft Excel.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-0979?
CVE-2020-0979 is a high-severity memory corruption vulnerability in Microsoft Office 365 Proplus, published on 15 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0906.
Which versions are affected by CVE-2020-0979?
It affects 1 product.
Products include Microsoft Office 365 Proplus.
How do I fix CVE-2020-0979?
No fix has been published for CVE-2020-0979 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-2020-0979 being exploited?
There is no known exploitation of CVE-2020-0979 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office 365 Proplus
Sources
Also known as GHSA-j7ph-9246-53g3.