Should you update to Office for Mac 16.113?
No: install Office for Mac 16.114 instead. Office for Mac 16.113 is a security update Microsoft released on 16 Sep 2026 for Mac. It fixes 83 security flaws, 18 rated critical and 65 important by Microsoft.[1] None of them is known to be used in attacks.
It has since been replaced by Office for Mac 16.114, released 14 Oct 2026, which includes all of its fixes. If you’re on an older version, install that instead.
Should you update?
No: install Office for Mac 16.114 instead. Office for Mac 16.114 came out on 14 Oct 2026 and includes every fix in Office for Mac 16.113, so there’s no reason to stop at this one. Software Update offers the newest version your Mac can run.
Is Office for Mac 16.113 still safe?
Not any more. Office for Mac 16.114 fixes 118 security flaws that Office for Mac 16.113 doesn’t, and each became public the day its fix shipped. Installing it is safe: get it only from Microsoft AutoUpdate (Help → Check for Updates in any Office app), or the App Store if Office came from there, never from a link in an email, text or pop-up.
What it fixes
Microsoft lists 83 security flaws, 18 rated critical and 65 important by Microsoft.[1] The 83 critical and important ones are:
| Flaw | Severity | What Microsoft calls it |
|---|---|---|
CVE-2026-69632 | Critical | Microsoft Office Remote Code Execution Vulnerability |
CVE-2026-69678 | Critical | Microsoft Office PowerPoint Remote Code Execution Vulnerability |
CVE-2026-69797 | Critical | Microsoft Office PowerPoint Remote Code Execution Vulnerability |
CVE-2026-77898 | Critical | Microsoft Office Remote Code Execution Vulnerability |
CVE-2026-78439 | Critical | Microsoft Office Graphics Component Remote Code Execution Vulnerability |
CVE-2026-78505 | Critical | Microsoft Office Remote Code Execution Vulnerability |
CVE-2026-78509 | Critical | Microsoft Office Outlook Remote Code Execution Vulnerability |
CVE-2026-78510 | Critical | Microsoft Outlook and Word Remote Code Execution Vulnerability |
CVE-2026-78520 | Critical | Microsoft Office Outlook Information Disclosure Vulnerability |
CVE-2026-78525 | Critical | Microsoft Office Outlook Remote Code Execution Vulnerability |
CVE-2026-81948 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-81949 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-81950 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-81951 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-81952 | Critical | Microsoft Word Remote Code Execution Vulnerability |
CVE-2026-81953 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-81955 | Critical | Windows Graphics Component Remote Code Execution Vulnerability |
CVE-2026-81959 | Critical | Microsoft Excel Remote Code Execution Vulnerability |
CVE-2026-69556 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-69626 | Important | Microsoft Office Information Disclosure Vulnerability |
CVE-2026-69671 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-69686 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-69719 | Important | Microsoft Office Word Information Disclosure Vulnerability |
CVE-2026-69722 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-69734 | Important | Microsoft Office Word Information Disclosure Vulnerability |
CVE-2026-69739 | Important | Microsoft Office Information Disclosure Vulnerability |
CVE-2026-69759 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-72938 | Important | Microsoft Office PowerPoint Information Disclosure Vulnerability |
CVE-2026-72972 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
CVE-2026-72973 | Important | Microsoft Office Word Remote Code Execution Vulnerability |
| and 53 more | ||
How to update, and how long it takes
Five to ten minutes. Each Office app closes while it updates.
- Open Word (or any Office app) and click Help in the menu bar.Choose Check for Updates. Microsoft AutoUpdate opens.
- Click Update All.Close the Office apps if it asks. AutoUpdate updates them one by one.
To check it worked: Word → About Microsoft Word: it shows e.g. Version 16.114 (26101123). It should say 16.114 or later.
16.112.4 vs 16.113
Office for Mac 16.112.4, released 10 Sep 2026, fixed 12 security flaws. Office for Mac 16.113 fixes 83 security flaws and includes the fixes before it, so going straight to 16.113 gets you both.
- Before: Office for Mac 16.112.4, 10 Sep 2026, 12 security flaws
- After: Office for Mac 16.114, 14 Oct 2026, 118 security flaws
- Office for Mac updates, every release and the latest version
- Updates, the latest version of everything HARD tracks
References
- ^ Microsoft. “Release notes for Office for Mac, September 16, 2026”, 16 Sep 2026.