Live › vulnerability › CVE-2026-21514
Go to dashboardMicrosoft Office Word has a flaw where it relies on untrusted input when making a security decision. An authorized local user can use it to elevate their privileges, and CISA reports it is being exploited in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft Office | vendor | – | – |
| microsoft 365 apps | vendor | – | – |
| microsoft office long term servicing channel | vendor | = 2021 | – |
| microsoft office long term servicing channel | vendor | = 2024 | – |
Check the installed Microsoft Office Word build against Microsoft's security update guide for CVE-2026-21514; the sources do not give the affected build numbers.
Apply the Microsoft security update for CVE-2026-21514 per vendor instructions; if no mitigation is available, discontinue use of the product as CISA directs (sources do not name the patched version).
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Microsoft Office Word contains a reliance on untrusted inputs in a security decision vulnerability that could allow an authorized attacker to elevate privileges locally.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2026-21514")
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