Use After Free in Microsoft 365 Apps
CVE-2023-28285
Microsoft Office Remote Code Execution Vulnerability
Vulnerability class: Use-After-Free
EPSS: 0.030 (86.0th 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 2019 For Mac — versions 16.0.0
- Microsoft Office Ltsc For Mac 2021 — versions 16.0.1
- Microsoft Office — versions 2019
- Microsoft Office_long_term_servicing_channel — versions 2021
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (vendor-advisory, Patch, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-28285?
- CVE-2023-28285 is a high-severity vulnerability in Microsoft 365 Apps, classified under Use After Free. CVSS score: 7.8/10. Published 2023-04-11.
- How severe is CVE-2023-28285?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-28285 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.