6.5
Medium
CVE-2026-80078 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network
Description
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft 365 Apps for Enterprise 16.0 | 16.0.1 → < 16.0.20326.20138 | 16.0.20326.20138 |
| Microsoft Office 2019 16.0 | earliest → < 16.0.10417.20207 | 16.0.10417.20207 |
| Microsoft Office 365 for Mac 1.0 | 1.0.0 → < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC 2021 16.0 | 16.0.1 → < 16.0.14334.20906 | 16.0.14334.20906 |
| Microsoft Office LTSC 2024 16.0 | 16.0.0 → < 16.0.17932.20976 | 16.0.17932.20976 |
| Microsoft Office LTSC for Mac 2021 16.0 | 16.0.1 → < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC for Mac 2024 16.0 | 16.0.0 → < 16.113.26091433 | 16.113.26091433 |
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8.8
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