Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

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

  - Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute     code over a network. (CVE-2026-50522)

  - External control of file name or path in Microsoft Office SharePoint allows an authorized attacker to     perform spoofing over a network. (CVE-2026-54108)

  - Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office     SharePoint allows an authorized attacker to perform spoofing over a network. (CVE-2026-55016)

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:

  - Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute     code over a network. (CVE-2026-50522)

  - External control of file name or path in Microsoft Office SharePoint allows an authorized attacker to perform     spoofing over a network. (CVE-2026-54108)

  - Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office     SharePoint allows an authorized attacker to perform spoofing over a network. (CVE-2026-55016)

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

  - Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute     code over a network. (CVE-2026-50522)

  - External control of file name or path in Microsoft Office SharePoint allows an authorized attacker to perform     spoofing over a network. (CVE-2026-54108)

  - Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office     SharePoint allows an authorized attacker to perform spoofing over a network. (CVE-2026-55016)

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 vulnerabilities:

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2026-55032, CVE-2026-55128)

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2026-55127, CVE-2026-55130)

  - Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2026-55038, CVE-2026-55055, CVE-2026-55134)

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 a security update. They are, therefore, affected by multiple vulnerabilities:

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    (CVE-2026-55032, CVE-2026-55128)

  - Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute     code locally. (CVE-2026-55038, CVE-2026-55055, CVE-2026-55134)

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute     code locally. (CVE-2026-55127, CVE-2026-55130)

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
327611	Security Updates for Microsoft SharePoint Server 2016 (July 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
327610	Security Updates for Microsoft SharePoint Server 2019 (July 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
327609	Security Updates for Microsoft SharePoint Server Subscription Edition (July 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
327596	Security Updates for Microsoft Word Products C2R (July 2026)	Nessus	Windows	Local	high
326868	Security Updates for Microsoft Word Products (July 2026)	Nessus	Windows : Microsoft Bulletins	Local	high

Detections

Analytics

CVE-2026-55032

high

Tenable Plugins

critical

critical

critical

high

high