Use after free in Microsoft Office Word 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 October 2025 advisory, including:

  - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. (CVE-2025-59236)

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. (CVE-2025-59222)

  - Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. (CVE-2025-59227)

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

The Microsoft Word 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-2025-59221, CVE-2025-59222, CVE-2025-59228, CVE-2025-59237)   
  - Information Disclosure Vulnerability     (CVE-2025-59232, CVE-2025-59235)

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-2025-59221, CVE-2025-59222, CVE-2025-59228, CVE-2025-59237)   
  - Information Disclosure Vulnerability     (CVE-2025-59232, CVE-2025-59235)

The Microsoft Word Products are missing a security update. They are, therefore, affected by multiple remote code execution vulnerabilities. An attacker can exploit these 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.

ID	Name	Product	Family	Type	Severity
274405	Security Updates for Microsoft Office Products (October 2025) (macOS)	Nessus	MacOS X Local Security Checks	Local	high
271231	Security Updates for Microsoft Word Products C2R (October 2025)	Nessus	Windows	Local	high
270388	Security Updates for Microsoft SharePoint Server 2019 (October 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
270383	Security Updates for Microsoft SharePoint Server 2016 (October 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
270364	Security Updates for Microsoft Word Products (October 2025)	Nessus	Windows : Microsoft Bulletins	Local	high

Detections

Analytics

CVE-2025-59221

high

Tenable Plugins

high

high

high

high

high