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

  - 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-2026-33113)

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-44819)

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
    (CVE-2026-44821)

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

  - 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-2026-33113)

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-44819)

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
    (CVE-2026-44821)

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:

  - 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-2026-33113)

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-44819)

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
    (CVE-2026-44821)

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	Published	Updated	Severity
320192	Security Updates for Microsoft SharePoint Server 2019 (June 2026)	Nessus	Windows : Microsoft Bulletins	6/9/2026	7/27/2026	high
320190	Security Updates for Microsoft SharePoint Server 2016 (June 2026)	Nessus	Windows : Microsoft Bulletins	6/9/2026	7/27/2026	high
320194	Security Updates for Microsoft SharePoint Server Subscription Edition (June 2026)	Nessus	Windows : Microsoft Bulletins	6/9/2026	7/27/2026	high

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