CVE-2026-26110

HIGH
2026-03-10 [email protected]
8.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 8.4

Tags

Microsoft Authentication Bypass Memory Corruption Office 365 Apps Office Long Term Servicing Channel

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

Analysis

Local code execution in Microsoft Office and 365 Apps stems from a type confusion vulnerability in memory handling that allows unauthenticated attackers to execute arbitrary code with system privileges. The vulnerability affects Office Long Term Servicing Channel deployments and requires only local access with no user interaction to trigger. …

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Remediation

Within 24 hours: Inventory all Microsoft Office deployments and identify users with administrative access or those handling external documents; communicate vulnerability status to stakeholders. Within 7 days: Implement application whitelisting for Office processes, restrict Office macro execution policies, and disable unnecessary Office features; conduct user awareness training on document handling. …

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Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +42
POC: 0

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CVE-2026-26110 vulnerability details – vuln.today
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