CVE-2026-21514: Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability
Microsoft Office Word contains a reliance on untrusted inputs in a security decision vulnerability that could allow an authorized attacker to elevate privileges locally.
Other sources
Microsoft Word Security Feature Bypass Vulnerability
— Microsoft
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.106.26020821
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21514?
CVE-2026-21514 is classified as a security feature bypass vulnerability that could allow an attacker to elevate privileges.
How do I fix CVE-2026-21514?
To fix CVE-2026-21514, apply the latest security updates provided by Microsoft for the affected Office products.
Which Microsoft products are affected by CVE-2026-21514?
CVE-2026-21514 affects multiple editions of Microsoft Office LTSC and Microsoft 365 Apps for Enterprise.
Can CVE-2026-21514 be exploited remotely?
CVE-2026-21514 is a local privilege escalation vulnerability, meaning it requires local access to be exploited.
What could an attacker achieve by exploiting CVE-2026-21514?
Exploiting CVE-2026-21514 could allow an authorized attacker to elevate privileges on a local system.