Use After Free in Microsoft 365_apps
CVE-2021-31176
Microsoft Office Remote Code Execution Vulnerability
Vulnerability class: Use-After-Free
EPSS: 0.030 (86.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft 365_apps
- Microsoft 365 Apps For Enterprise — versions 16.0.1
- Microsoft Office 2013 Service Pack 1 — versions 15.0.0
- Microsoft Office 2016 — versions 16.0.0
- Microsoft Office 2019 — versions 19.0.0
- Microsoft Office — versions 2013, 2016, 2019
- Microsoft Office_online_server
- Microsoft Office_web_apps_server — versions 2013
Weakness classification (CWE)
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- secure@microsoft.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-31176?
- CVE-2021-31176 is a high-severity vulnerability in Microsoft 365_apps, classified under Use After Free. CVSS score: 7.8/10. Published 2021-05-11.
- How severe is CVE-2021-31176?
- High severity. CVSS v3 base score is 7.8 out of 10.