CVE-2017-8743 Memory corruption in Microsoft Office
Attackers can execute arbitrary code by exploiting a memory handling flaw in Microsoft PowerPoint and related Office services.
- 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-2017-8743?
CVE-2017-8743 is a high-severity memory corruption vulnerability in Microsoft Office Online Server, published on 13 Sep 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
A remote code execution vulnerability exists in Microsoft PowerPoint 2016, Microsoft SharePoint Enterprise Server 2016, and Office Online Server when they fail to properly handle objects in memory, aka "PowerPoint Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8742.
Weakness: CWE-119
Which versions are affected by CVE-2017-8743?
It affects 3 products.
Products include Microsoft Office Online Server, Microsoft Powerpoint, Microsoft Sharepoint Server.
How do I fix CVE-2017-8743?
No fix has been published for CVE-2017-8743 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-2017-8743 being exploited?
There is no known exploitation of CVE-2017-8743 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office Online Server
- CVE-2022-33648 Microsoft Excel Remote Code Execution Vulnerability
- CVE-2023-23396 Microsoft Excel Denial of Service Vulnerability
- CVE-2020-1442 Cross-site scripting in Microsoft Office Online Server
- CVE-2022-30159 Microsoft Office Information Disclosure Vulnerability
- CVE-2022-30171 Microsoft Office Information Disclosure Vulnerability
Sources
Also known as GHSA-m674-4xwc-r94v.