CVE-2017-11884 Memory corruption in Microsoft Office
An attacker can execute arbitrary code by exploiting a memory corruption flaw in Microsoft Excel, requiring user interaction to open a malicious file.
- 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-2017-11884?
CVE-2017-11884 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 15 Nov 2017. 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
Microsoft Excel 2016 Click-to-Run (C2R) allows an attacker to run arbitrary code in the context of the current user by failing to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11882.
Weakness: CWE-119
Which versions are affected by CVE-2017-11884?
It affects 1 product.
Products include Microsoft Excel.
How do I fix CVE-2017-11884?
No fix has been published for CVE-2017-11884 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-2017-11884 being exploited?
There is no known exploitation of CVE-2017-11884 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-cf25-5rjj-26cw.