Microsoft Office
YES - ON THE CISA KEV LIST
CVE-2017-11826
Microsoft Office Remote Code Execution Vulnerability
overdue since 2022-03-24
Microsoft: 391 entries (22.0% of all KEV entries are from this vendor); 41 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2017-11826
References
Other KEV entries for this vendor: Microsoft
- CVE-2026-124194 - Office (2026-11-10)
- CVE-2026-96951 - Windows (2026-10-13)
- CVE-2026-65660 - SharePoint (2026-09-25)
- CVE-2026-81963 - Windows (2026-09-08)
- CVE-2026-85880 - Windows (2026-09-08)
- CVE-2019-1068 - SQL Server (2026-08-26)
- CVE-2026-33824 - Internet Key Exchange (IKE) Service Extensions (2026-08-18)
- CVE-2026-55040 - SharePoint (2026-08-18)
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