Use after free 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 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 Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Remote code execution vulnerabilities that attackers can exploit to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-59227, CVE-2025-59234)

  - A denial of service (DoS) vulnerability. (CVE-2025-59229)

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. 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-2025-59226, CVE-2025-59227, CVE-2025-59234)

  - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive     information. (CVE-2025-59232, CVE-2025-59235)

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	Severity
274405	Security Updates for Microsoft Office Products (October 2025) (macOS)	Nessus	MacOS X Local Security Checks	high
271235	Security Updates for Microsoft Office Products C2R (October 2025)	Nessus	Windows	high
270387	Security Updates for Microsoft Office Products (October 2025)	Nessus	Windows : Microsoft Bulletins	high

Detections

Analytics

CVE-2025-59227

high

Tenable Plugins

high

high

high