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7.8 High

CVE-2026-45475 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally

Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected products and versions

Product Affected versions Fixed in
Microsoft 365 Apps for Enterprise 16.0 16.0.1 → latest No fix stated
Microsoft Office 2016 16.0 16.0.0 → < 16.0.5556.1005 16.0.5556.1005
Microsoft Office 2019 19.0 19.0.0 → latest No fix stated
Microsoft Office 365 for Mac 1.0 1.0.0 → < 16.110.26061317 16.110.26061317
Microsoft Office LTSC 2021 16.0 16.0.1 → latest No fix stated
Microsoft Office LTSC 2024 16.0 16.0.0 → latest No fix stated
Microsoft Office LTSC for Mac 2021 16.0 16.0.1 → < 16.110.26061317 16.110.26061317
Microsoft Office LTSC for Mac 2024 16.0 16.0.0 → < 16.110.26061317 16.110.26061317
Microsoft SharePoint Enterprise Server 2016 16.0 16.0.0 → < 16.0.5556.1005 16.0.5556.1005
Show the 2 other branches
Product Affected versions Fixed in
Microsoft SharePoint Server 2019 16.0 16.0.0 → < 16.0.10417.20153 16.0.10417.20153
Microsoft SharePoint Server Subscription Edition 16.0 16.0.0 → < 16.0.19725.20384 16.0.19725.20384

References

Timeline

  1. Published
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