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

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-55045)

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code     locally. (CVE-2026-50301, CVE-2026-55017, CVE-2026-55049, CVE-2026-55056, CVE-2026-55125,     CVE-2026-55129, CVE-2026-55140)

  - Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-47290, CVE-2026-50314, CVE-2026-50467, CVE-2026-55018)

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

The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as referenced in the july-14-2026 advisory.

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-55045)

  - Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code     locally. (CVE-2026-55141, CVE-2026-55899)

  - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
    (CVE-2026-47642, CVE-2026-54131, CVE-2026-55948)

  - Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose     information locally. (CVE-2026-48580, CVE-2026-55138)

  - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information     locally. (CVE-2026-50408, CVE-2026-54988, CVE-2026-55046, CVE-2026-55122, CVE-2026-55898)

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:

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-55045)

  - Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-47290, CVE-2026-50314, CVE-2026-50467, CVE-2026-55018)

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
    (CVE-2026-50301, CVE-2026-55017, CVE-2026-55049, CVE-2026-55056, CVE-2026-55125, CVE-2026-55129,     CVE-2026-55140)

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:

  - 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.

ID	Name	Product	Family	Published	Updated	Severity
327609	Security Updates for Microsoft SharePoint Server Subscription Edition (July 2026)	Nessus	Windows : Microsoft Bulletins	7/17/2026	7/23/2026	critical
327610	Security Updates for Microsoft SharePoint Server 2019 (July 2026)	Nessus	Windows : Microsoft Bulletins	7/17/2026	7/23/2026	critical
326874	Security Updates for Microsoft Office Products (July 2026)	Nessus	Windows : Microsoft Bulletins	7/14/2026	7/17/2026	medium
326952	Security Updates for Microsoft Office Products (July 2026) (macOS)	Nessus	MacOS X Local Security Checks	7/15/2026	7/17/2026	high
327595	Security Updates for Microsoft Office Products C2R (July 2026)	Nessus	Windows	7/17/2026	7/20/2026	medium
327611	Security Updates for Microsoft SharePoint Server 2016 (July 2026)	Nessus	Windows : Microsoft Bulletins	7/17/2026	7/23/2026	critical

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