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Microsoft security briefs

268 published alerts for Microsoft products and services.

Microsoft MSRC

CVE-2026-45504

Microsoft Exchange Server Elevation of Privilege vulnerability

Microsoft Exchange Server Elevation of Privilege vulnerability (CVE-2026-45504) was added to Microsoft’s security update guidance. Acknowledgement added. This is an informational change only. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44818

Microsoft Excel Remote Code Execution vulnerability

Microsoft Excel Remote Code Execution vulnerability (CVE-2026-44818) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44819

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-44819) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44820

Microsoft Excel Remote Code Execution vulnerability

Microsoft Excel Remote Code Execution vulnerability (CVE-2026-44820) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44821

Microsoft Office Information Disclosure vulnerability

Microsoft Office Information Disclosure vulnerability (CVE-2026-44821) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44822

Microsoft Excel Information Disclosure vulnerability

Microsoft Excel Information Disclosure vulnerability (CVE-2026-44822) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44823

Microsoft Excel Remote Code Execution vulnerability

Microsoft Excel Remote Code Execution vulnerability (CVE-2026-44823) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-44824

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-44824) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45455

Microsoft Excel Information Disclosure vulnerability

Microsoft Excel Information Disclosure vulnerability (CVE-2026-45455) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45456

Microsoft Outlook and Word Remote Code Execution vulnerability

Microsoft Outlook and Word Remote Code Execution vulnerability (CVE-2026-45456) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45457

Microsoft Word Remote Code Execution vulnerability

Microsoft Word Remote Code Execution vulnerability (CVE-2026-45457) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45458

Microsoft Outlook and Word Remote Code Execution vulnerability

Microsoft Outlook and Word Remote Code Execution vulnerability (CVE-2026-45458) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45459

Microsoft Excel Security Feature Bypass vulnerability

Microsoft Excel Security Feature Bypass vulnerability (CVE-2026-45459) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45460

Microsoft Office Information Disclosure vulnerability

Microsoft Office Information Disclosure vulnerability (CVE-2026-45460) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45461

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45461) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45463

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45463) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45466

Microsoft Word Information Disclosure vulnerability

Microsoft Word Information Disclosure vulnerability (CVE-2026-45466) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45469

Microsoft Excel Remote Code Execution vulnerability

Microsoft Excel Remote Code Execution vulnerability (CVE-2026-45469) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45471

Microsoft Word Remote Code Execution vulnerability

Microsoft Word Remote Code Execution vulnerability (CVE-2026-45471) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45472

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45472) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45474

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45474) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45475

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45475) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45485

Microsoft Office Information Disclosure vulnerability

Microsoft Office Information Disclosure vulnerability (CVE-2026-45485) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-45486

Microsoft Word Remote Code Execution vulnerability

Microsoft Word Remote Code Execution vulnerability (CVE-2026-45486) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not… PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.