Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.

The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as referenced in the september-16-2025 advisory.

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2025-54910)

  - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2025-54896, CVE-2025-54903, CVE-2025-54904)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2025-54898, CVE-2025-54902)

  - Free of memory not on the heap in Microsoft Office Excel allows an unauthorized attacker to execute code     locally. (CVE-2025-54899)

  - Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code     locally. (CVE-2025-54900)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Microsoft Office Products are missing security updates. It is, therefore, affected by multiple remote code execution vulnerabilities that attackers can exploit to bypass authentication and execute unauthorized arbitrary commands.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Microsoft SharePoint Server 2019 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Remote Code Execution Vulnerability. (CVE-2025-54897, CVE-2025-54905)   
  - Information Disclosure Vulnerability (CVE-2025-54906)

The Microsoft SharePoint Server 2016 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Remote Code Execution Vulnerability. (CVE-2025-54897, CVE-2025-54905)   
  - Information Disclosure Vulnerability (CVE-2025-54906)

The Microsoft Office Products are missing security updates. They are, therefore, affected by multiple vulnerabilities.

  - A Remote Code Execution vulnerability. An attacker can exploit this to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-54906, CVE-2025-54910)

  - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive     information. (CVE-2025-54901)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
265140	Security Updates for Microsoft Office Products (September 2025) (macOS)	Nessus	MacOS X Local Security Checks	Local	high
264570	Security Updates for Microsoft Office Products C2R (September 2025)	Nessus	Windows	Local	critical
261816	Security Updates for Microsoft SharePoint Server 2019 (September 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
261806	Security Updates for Microsoft SharePoint Server 2016 (September 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
261796	Security Updates for Microsoft Office Products (September 2025)	Nessus	Windows : Microsoft Bulletins	Local	high

Detections

Analytics

CVE-2025-54906

high

Tenable Plugins

high

critical

high

high

high