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Microsoft Outlook Spoofing Vulnerability

🗓️ 10 Feb 2026 16:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

A deserialization flaw in Microsoft Outlook enables an unauthorized actor to spoof over network.

Related
Detection
Vulners
Node
microsoftoffice_macos_2021Range<16.106.26020821ltsc
OR
microsoft365_appsRange<16.0.19628.20204current_channelenterprisex64
OR
microsoft365_appsRange<16.0.19530.20226monthly_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.19426.20294monthly_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.19328.20306monthly_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.19127.20532semi-annual_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.18526.20714semi-annual_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.17928.20776semi-annual_enterprise_channelenterprisex64
OR
microsoft365_appsRange<16.0.19628.20204current_channelenterprisex32
OR
microsoft365_appsRange<16.0.19530.20226monthly_enterprise_channelenterprisex32
OR
microsoft365_appsRange<16.0.19426.20294monthly_enterprise_channelenterprisex32
OR
microsoft365_appsRange<16.0.19328.20306monthly_enterprise_channelenterprisex32
OR
microsoft365_appsRange<16.0.19127.20532semi-annual_enterprise_channelenterprisex32
OR
microsoft365_appsRange<16.0.18526.20714semi-annual_enterprise_channelenterprisex32
OR
microsoft365_appsRange<16.0.17928.20776semi-annual_enterprise_channelenterprisex32
OR
microsoftoffice_2019Range<16.0.10417.20097x64
OR
microsoftoffice_2019Range<16.0.10417.20097x32
OR
microsoftsharepoint_server_2019Range<16.0.10417.20097
OR
microsoftsharepoint_server_2019Range<16.0.10417.20097
OR
microsoftsharepoint_enterprise_server_2016Range<16.0.5539.1002enterprise
OR
microsoftsharepoint_enterprise_server_2016Range<16.0.5539.1002enterprise
OR
microsoftword_2016Range<16.0.5539.1002
OR
microsoftword_2016Range<16.0.5539.1002
OR
microsoftoffice_macos_2024Range<16.106.26020821ltsc
OR
microsoftoffice_2024Range<16.0.17932.20670ltscx64
OR
microsoftoffice_2024Range<16.0.17932.20670ltscx32
OR
microsoftsharepoint_serverRange<16.0.19127.20518subscription
OR
microsoftoffice_2021Range<16.0.14334.20522ltscx32
OR
microsoftoffice_2021Range<16.0.14334.20522ltscx64

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11 Feb 2026 16:00Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.17.5
EPSS0.00347
SSVC
2