LOW 3.3 Microsoft
CVE-2026-45459
Microsoft Excel Security Feature Bypass Vulnerability
Microsoft Security Update 2026-Jun: Microsoft Excel Security Feature Bypass Vulnerability
Affected Products
- Microsoft 365 Apps for Enterprise for 32-bit Systems
- Microsoft 365 Apps for Enterprise for 64-bit Systems
- Microsoft Office LTSC for Mac 2021
- Microsoft Office LTSC 2024 for 32-bit editions
- Microsoft Office LTSC 2024 for 64-bit editions
- Microsoft Office LTSC for Mac 2024
- Microsoft Office 365 for Mac
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45459
- https://nvd.nist.gov/vuln/detail/CVE-2026-45459
This low severity vulnerability with a CVSS score of 3.3 was published on 2026-06-09 via Microsoft. Affected: Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021 and 4 more.
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