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Microsoft security briefs

268 published alerts for Microsoft products and services.

Microsoft MSRC

CVE-2026-45643

Microsoft Word Remote Code Execution vulnerability

Microsoft Word Remote Code Execution vulnerability (CVE-2026-45643) 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-2026-45645

Microsoft Office Remote Code Execution vulnerability

Microsoft Office Remote Code Execution vulnerability (CVE-2026-45645) 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-2026-45649

Office for Android Spoofing vulnerability

Office for Android Spoofing vulnerability (CVE-2026-45649) was added to Microsoft’s security update guidance. Microsoft is announcing the availability of the security updates for Microsoft Word, PowerPoint, Excel 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-2026-45480

Azure Active Directory Elevation of Privilege vulnerability

Azure Active Directory Elevation of Privilege vulnerability (CVE-2026-45480) was added to Microsoft’s security update guidance. Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47633

Microsoft Cost Management Information Disclosure vulnerability

Microsoft Cost Management Information Disclosure vulnerability (CVE-2026-47633) was added to Microsoft’s security update guidance. Exposure of sensitive information to an unauthorized actor in Cost Management Interactive Experiences allows an unauthorized attacker to disclose information over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47645

Microsoft 365 Copilot's Business Chat Elevation of Privilege vulnerability

Microsoft 365 Copilot's Business Chat Elevation of Privilege vulnerability (CVE-2026-47645) was added to Microsoft’s security update guidance. Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47646

Dynamics 365 Customer Voice Spoofing vulnerability

Dynamics 365 Customer Voice Spoofing vulnerability (CVE-2026-47646) was added to Microsoft’s security update guidance. Improper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Customer Voice allows an unauthorized attacker to perform spoofing over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47647

Dynamics 365 Elevation of Privilege vulnerability

Dynamics 365 Elevation of Privilege vulnerability (CVE-2026-47647) was added to Microsoft’s security update guidance. Improper access control in Microsoft Dynamics 365 allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-48582

Microsoft Exchange Online Elevation of Privilege vulnerability

Microsoft Exchange Online Elevation of Privilege vulnerability (CVE-2026-48582) was added to Microsoft’s security update guidance. Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-48584

Microsoft Azure Synapse Elevation of Privilege vulnerability

Microsoft Azure Synapse Elevation of Privilege vulnerability (CVE-2026-48584) was added to Microsoft’s security update guidance. Execution with unnecessary privileges in Azure Synapse allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-47636

Microsoft SharePoint Server Spoofing vulnerability

Microsoft SharePoint Server Spoofing vulnerability (CVE-2026-47636) 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-2026-45602

Windows Dynamic Host Configuration Protocol (DHCP) Tampering vulnerability

Windows Dynamic Host Configuration Protocol (DHCP) Tampering vulnerability (CVE-2026-45602) was added to Microsoft’s security update guidance. Updated CWE value. 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-2026-24304

Azure Resource Manager Elevation of Privilege vulnerability

Azure Resource Manager Elevation of Privilege vulnerability (CVE-2026-24304) was added to Microsoft’s security update guidance. Informational Change. CVE ID stays the same. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-66803

Azure Cosmos DB Remote Code Execution vulnerability

Azure Cosmos DB Remote Code Execution vulnerability (CVE-2026-66803) was added to Microsoft’s security update guidance. Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-62835

Azure Portal Information Disclosure vulnerability

Azure Portal Information Disclosure vulnerability (CVE-2026-62835) was added to Microsoft’s security update guidance. Corrected the CVE description and title. 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-2026-35425

Azure API Management (APIM) Remote Code Execution vulnerability

Azure API Management (APIM) Remote Code Execution vulnerability (CVE-2026-35425) was added to Microsoft’s security update guidance. Improper access control in Azure API Management (APIM) allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-49159

Microsoft Graph Information Disclosure vulnerability

Microsoft Graph Information Disclosure vulnerability (CVE-2026-49159) was added to Microsoft’s security update guidance. Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an authorized attacker to disclose information over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-50517

Microsoft M365 Copilot Remote Code Execution vulnerability

Microsoft M365 Copilot Remote Code Execution vulnerability (CVE-2026-50517) was added to Microsoft’s security update guidance. Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-54120

Microsoft Surface Remote Code Execution vulnerability

Microsoft Surface Remote Code Execution vulnerability (CVE-2026-54120) was added to Microsoft’s security update guidance. Improper input validation in Microsoft Surface allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-56160

Azure Red Hat OpenShift (ARO) Elevation of Privilege vulnerability

Azure Red Hat OpenShift (ARO) Elevation of Privilege vulnerability (CVE-2026-56160) was added to Microsoft’s security update guidance. Improper authorization in Azure Red Hat OpenShift (ARO) allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-56163

Microsoft Azure Kubernetes Service Elevation of Privilege vulnerability

Microsoft Azure Kubernetes Service Elevation of Privilege vulnerability (CVE-2026-56163) was added to Microsoft’s security update guidance. Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-56165

Microsoft Account Remote Code Execution vulnerability

Microsoft Account Remote Code Execution vulnerability (CVE-2026-56165) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-56167

Azure AI Search Elevation of Privilege vulnerability

Azure AI Search Elevation of Privilege vulnerability (CVE-2026-56167) was added to Microsoft’s security update guidance. Server-side request forgery (ssrf) in Azure AI Search allows an authorized attacker to elevate privileges over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

Microsoft MSRC

CVE-2026-56191

Microsoft Exchange Online Tampering vulnerability

Microsoft Exchange Online Tampering vulnerability (CVE-2026-56191) was added to Microsoft’s security update guidance. Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.