CyberWatch Newsroom Live Intel

Critical CVE-2026-78518 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78518 Microsoft Office Excel Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78515 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78515 Microsoft Office Excel Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78514 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78514 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78513 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78513 Microsoft Office PowerPoint Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78512 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78512 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78511 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78511 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78510 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78510 Microsoft Outlook and Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Windows / Microsoft 365

Advisory

Critical CVE-2026-78509 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78509 Microsoft Office Outlook Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78507 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78507 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78506 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78506 Microsoft Office Word Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78505 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78505 Microsoft Office Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-78504 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78504 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78503 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78503 Microsoft Office Word Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78502 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78502 Microsoft Office Word Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-78501 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability

Improper neutralization of special elements used in a command ('command injection') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to disclose information over a network.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Windows / Microsoft 365

Advisory

Critical CVE-2026-78439 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-78439 Microsoft Office Graphics Component Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Important CVE-2026-77903 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-77903 Microsoft Dataverse Elevation of Privilege Vulnerability

Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Windows / Microsoft 365

Advisory

Critical CVE-2026-77898 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-77898 Microsoft Office Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-72977 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72977 Microsoft Office PowerPoint Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-72976 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72976 Microsoft Office Word Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-72975 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72975 Microsoft Office PowerPoint Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Moderate CVE-2026-72974 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72974 Microsoft Office Excel Information Disclosure Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-72973 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72973 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory

Critical CVE-2026-72972 Microsoft MSRC

2026-09-17 Microsoft MSRC

CVE-2026-72972 Microsoft Office Word Remote Code Execution Vulnerability

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 need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

Fix: Deploy cumulative update via Windows Update or Microsoft Update Catalog.

Microsoft Office

Advisory