CVE-2019-1331 Memory corruption in Excel Services on Microsoft SharePoint Server 2010 Service Pack 2
Attackers can execute arbitrary code by exploiting a memory handling flaw in Microsoft Excel, requiring user interaction to open a malicious file.
- 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-2019-1331?
CVE-2019-1331 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 10 Oct 2019. 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-2019-1327.
Which versions are affected by CVE-2019-1331?
It affects 5 products.
Products include Microsoft Excel, Microsoft Excel Services, Microsoft Office, Microsoft Office 365 Proplus, Microsoft Office Online Server.
How do I fix CVE-2019-1331?
No fix has been published for CVE-2019-1331 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-2019-1331 being exploited?
There is no known exploitation of CVE-2019-1331 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-6g5f-f6jh-vxmv.