CVE-2026-40419

Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40419	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:365_apps:-::::enterprise::x64:*
	cpe:2.3:a:microsoft:365_apps:-::::enterprise::x86:*
	cpe:2.3:a:microsoft:office:2019::::::x64:
	cpe:2.3:a:microsoft:office:2019::::::x86:
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x64:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x86:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x64:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x86:*

History

26 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) Uso después de liberar en Microsoft Office permite a un atacante autorizado elevar privilegios localmente.

Information

Published : 2026-05-12 18:17

Updated : 2026-10-26 18:10

NVD link : CVE-2026-40419

Mitre link : CVE-2026-40419

CVE.ORG link : CVE-2026-40419

JSON object : View

Products Affected

microsoft

office
office_long_term_servicing_channel
365_apps

CWE

CWE-416

Use After Free

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