The Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a     network. (CVE-2026-69285, CVE-2026-77898, CVE-2026-78505)

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a     network. (CVE-2026-78526, CVE-2026-81952)

  - Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code     over a network. (CVE-2026-81955)

  - Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.
    (CVE-2026-69632)

  - Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information over a     network. (CVE-2026-69739, CVE-2026-80076, CVE-2026-80078, CVE-2026-80082, CVE-2026-80089)

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 september-16-2026 advisory.

  - Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a     network. (CVE-2026-69678, CVE-2026-69767, CVE-2026-69797)

  - Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information over a     network. (CVE-2026-69626)

  - Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.
    (CVE-2026-69632)

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a     network. (CVE-2026-69671, CVE-2026-72972, CVE-2026-72973, CVE-2026-78510, CVE-2026-78511, CVE-2026-78517,     CVE-2026-78521, CVE-2026-78526, CVE-2026-80085, CVE-2026-81952)

  - Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over     a network. (CVE-2026-69686, CVE-2026-69722, CVE-2026-69759, CVE-2026-78504)

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
344558	Security Updates for Microsoft Office Products C2R (September 2026)	Nessus	Windows	9/10/2026	9/11/2026	high
346427	Security Updates for Microsoft Office Products (September 2026) (macOS)	Nessus	MacOS X Local Security Checks	9/16/2026	9/18/2026	high

Detections

Analytics

Plugins Search

high

high