CVE-2025-49697
High
Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Microsoft Office
PublishedJul 8, 2025
First seenJul 8, 2025
Weakness typeCWE-122CWE-122
How to fix
Update
- microsoft office_online_server16.0.10417.20027 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft office | 2016, 2019 | — |
| microsoft 365_apps | No range specified | — |
| microsoft 365_copilot | No range specified | — |
| microsoft office_long_term_servicing_channel | 2021, 2024 | — |
| microsoft office_online_server | v < 16.0.10417.20027 | 16.0.10417.20027 |
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