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

  - External control of file name or path in Microsoft Office Word allows an unauthorized attacker to     execute code locally. (CVE-2026-62804)

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code     over a network. (CVE-2026-69556, CVE-2026-69671, CVE-2026-69764, CVE-2026-72972, CVE-2026-72973,     CVE-2026-78511, CVE-2026-78517, CVE-2026-78521, CVE-2026-80085)

  - 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)

  - Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information     over a network. (CVE-2026-69719)

  - Out-of-bounds read in Microsoft Office Word allows an authorized attacker to disclose information     locally. (CVE-2026-72976)

  - Null pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code     over a network. (CVE-2026-77901)

  - Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information     over a network. (CVE-2026-77911, CVE-2026-78502, CVE-2026-78503, CVE-2026-78522, CVE-2026-80079,     CVE-2026-80090)

  - Improper null termination in Microsoft Office Word allows an unauthorized attacker to disclose     information locally. (CVE-2026-78506)

  - Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute     code over a network. (CVE-2026-78509)

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a     network. (CVE-2026-78514)

  - Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code over     a network. (CVE-2026-78520)

  - Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a     network. (CVE-2026-78525)

  - Double free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
    (CVE-2026-80080)

  - Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information     locally. (CVE-2026-83949, CVE-2026-83951)

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:

  - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a     network. (CVE-2026-69671, CVE-2026-69764, CVE-2026-72972, CVE-2026-72973, CVE-2026-78510, CVE-2026-78511,     CVE-2026-78517, CVE-2026-78521, CVE-2026-80085)

  - 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)

  - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
    (CVE-2026-78507, CVE-2026-78514)

  - Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over     a network. (CVE-2026-78509)

  - Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a     network. (CVE-2026-78502, CVE-2026-78503, CVE-2026-78522, CVE-2026-80079, CVE-2026-80088, CVE-2026-80090)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
344290	Security Updates for Microsoft Word Products (September 2026)	Nessus	Windows : Microsoft Bulletins	2026/9/9	2026/9/10	critical
344562	Security Updates for Microsoft Word Products C2R (September 2026)	Nessus	Windows	2026/9/10	2026/9/11	critical

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