CVE-2026-21511
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
| Software | From | Fixed in |
|---|---|---|
| microsoft / office | 2019 | 2019.x |
| microsoft / office_long_term_servicing_channel | 2021 | 2021.x |
| microsoft / office_long_term_servicing_channel | 2024 | 2024.x |
| microsoft / sharepoint_server | - | 16.0.19127.20518 |
| microsoft / sharepoint_server | 2016 | 2016.x |
| microsoft / sharepoint_server | 2019 | 2019.x |
| microsoft / word | 2016 | 2016.x |
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