Buffer overflow in Microsoft 365_apps
CVE-2025-24057
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (55.5th 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 2016 — versions 16.0.0
- Microsoft Office 2019 — versions 19.0.0
- Microsoft Office Ltsc 2021 — versions 16.0.1
- Microsoft Office Ltsc 2024 — versions 16.0.0
- Microsoft Office Ltsc For Mac 2021 — versions 16.0.1
- Microsoft Office Ltsc For Mac 2024 — versions 16.0.0
- Microsoft Office — versions 2016, 2019
- Microsoft Office_long_term_servicing_channel — versions 2021, 2024
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-24057?
- CVE-2025-24057 is a high-severity vulnerability in Microsoft 365_apps, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2025-03-11.
- How severe is CVE-2025-24057?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-24057 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.