Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as referenced in the july-15-2025 advisory.

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2025-49697)

  - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2025-49711)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information     locally. (CVE-2025-48812)

  - Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code     locally. (CVE-2025-49705)

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2025-49698, CVE-2025-49703)

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 Online Server installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - An information disclosure vulnerability. An attacker can     exploit this to disclose potentially sensitive     information. (CVE-2025-48812)

  - A remote code execution vulnerability. An attacker can     exploit this to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-49697,     CVE-2025-49711)     Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Microsoft Excel Products are missing a security update. It is, therefore, affected by the following vulnerabilities:

  - A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-49711)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information     locally. (CVE-2025-48812)     Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Microsoft Excel Products are missing a security update. They are, therefore, affected by multiple vulnerabilities:

  - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive     information. (CVE-2025-48812)

  - A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-49697, CVE-2025-49711)

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.

  - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive     information. (CVE-2025-48812)

  - A Remote Code Execution vulnerability. An attacker can exploit this to bypass authentication and execute     unauthorized arbitrary commands. (CVE-2025-49695, CVE-2025-49696, CVE-2025-49697, CVE-2025-49698,     CVE-2025-49699, CVE-2025-49700, CVE-2025-49702)

  - An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
    (CVE-2025-47994)

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
242171	Security Updates for Microsoft Office Products (July 2025) (macOS)	Nessus	MacOS X Local Security Checks	Local	high
241990	Security Updates for Microsoft Office Online Server (July 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
241978	Security Updates for Microsoft Excel Products (July 2025)	Nessus	Windows	Local	high
241564	Security Updates for Microsoft Excel Products (July 2025)	Nessus	Windows : Microsoft Bulletins	Local	high
241553	Security Updates for Microsoft Office Products (July 2025)	Nessus	Windows : Microsoft Bulletins	Local	high

Detections

Analytics

CVE-2025-48812

medium

Tenable Plugins

high

high

high

high

high