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Microsoft Office OneNote Remote Code Execution Vulnerability

🗓️ 11 Nov 2026 20:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 6 Views

Heap-based buffer overflow in Microsoft Office OneNote allows remote code execution.

Related
Detection
ReporterTitlePublishedViews
Family
cve
CVE		CVE-2026-126526
11 Nov 202620:00
–cve
kaspersky
Kaspersky		KLA91420 ACE vulnerability in Microsoft Office
11 Nov 202600:00
–kaspersky
Vulners
Node
OR
microsoftoffice_2021Range<16.0.14334.21048ltsc
microsoftoffice_macos_2024Range<16.115.26110837ltsc
microsoftoffice_365Range<16.115.26110837macos
microsoftoffice_macos_2021Range<16.115.26110837ltsc
microsoft365_appsRange<16.0.20527.20196current_channelenterprisex64
microsoft365_appsRange<16.0.20527.20194monthly_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20430.20264monthly_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20326.20320monthly_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20527.20192semi-annual_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20430.20262semi-annual_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20326.20318semi-annual_enterprise_channelenterprisex64
microsoft365_appsRange<16.0.20527.20196current_channelenterprisex32
microsoft365_appsRange<16.0.20527.20194monthly_enterprise_channelenterprisex32
microsoft365_appsRange<16.0.20430.20264monthly_enterprise_channelenterprisex32
microsoft365_appsRange<16.0.20326.20320monthly_enterprise_channelenterprisex32
microsoft365_appsRange<16.0.20527.20192semi-annual_enterprise_channelenterprisex32
microsoft365_appsRange<16.0.20430.20262semi-annual_enterprise_channelenterprisex32
microsoft365_appsRange<16.0.20326.20318semi-annual_enterprise_channelenterprisex32
microsoftoffice_2024Range<16.0.17932.21140ltsc
microsoftoffice_2021Range<16.0.14334.21048ltsc
microsoftoffice_2024Range<16.0.17932.21140ltsc

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11 Nov 2026 20:00Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.18.8
Microsoft Office OneNoteHeap-based buffer overflowRemote Code Execution
6