CVE-2020-1349 Memory corruption in Microsoft 365 Apps for Enterprise for 32-bit Systems
Attackers can execute arbitrary code remotely by exploiting a memory handling flaw in Microsoft Outlook.
- 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-2020-1349?
CVE-2020-1349 is a high-severity memory corruption vulnerability in Microsoft 365 Apps, published on 14 Jul 2020. 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 Outlook software when it fails to properly handle objects in memory, aka 'Microsoft Outlook Remote Code Execution Vulnerability'.
Which versions are affected by CVE-2020-1349?
It affects 3 products.
Products include Microsoft 365 Apps, Microsoft Office, Microsoft Outlook.
How do I fix CVE-2020-1349?
No fix has been published for CVE-2020-1349 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-2020-1349 being exploited?
There is no known exploitation of CVE-2020-1349 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft 365 Apps
- CVE-2024-21413 Microsoft Outlook Improper Input Validation
- CVE-2023-23397 Microsoft Office Outlook Privilege Escalation
- CVE-2024-38189 Microsoft Project Remote Code Execution Vulnerability
- CVE-2023-35311 Microsoft Outlook Security Feature Bypass
- CVE-2026-21514 Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision
Sources
Also known as GHSA-m68p-g9r9-q6xw.