CVE-2018-0802 Microsoft Office Memory Corruption
Remote attackers can execute arbitrary code via crafted documents exploiting memory corruption in Microsoft Office Equation Editor.
- Exploited in the wild
- Since 3 Nov 2021
- 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-2018-0802?
CVE-2018-0802 is a high-severity memory corruption vulnerability in Microsoft Office, published on 10 Jan 2018. 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
Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0797 and CVE-2018-0812.
Weakness: CWE-787
Which versions are affected by CVE-2018-0802?
It affects 3 products.
Products include Microsoft Office, Microsoft Office Compatibility Pack, Microsoft Word.
How do I fix CVE-2018-0802?
No fix has been published for CVE-2018-0802 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-0802 being exploited?
Yes. Attackers have exploited CVE-2018-0802 in the wild since at least 3 Nov 2021, including in ransomware campaigns.
Public exploit code: 6 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-x323-9hmm-gv8q.