Product / Microsoft
Microsoft Office in CISA KEV
Answer CISA's KEV catalog lists 29 vulnerabilities in Microsoft Office as of catalog 2026.09.23, 7.5% of Microsoft's 388 entries. First added 2021-11-03, latest 2026-04-14; 3 ransomware-linked.
- KEV entries
- 29
- Ransomware: known
- 310.3%
- First added
- 2021-11-03
- Latest added
- 2026-04-14
- Median days to due
- 21
- Open deadlines
- 0federal
TAdditions by year
| Year | Added |
|---|---|
| 2021 | 8 |
| 2022 | 14 |
| 2023 | 2 |
| 2024 | 0 |
| 2025 | 1 |
| 2026 | 4 |
WWeaknesses
| CWE | Entries | Share |
|---|---|---|
| CWE-119 Memory buffer bounds error | 8 | 27.6% |
| CWE-94 Code injection | 4 | 13.8% |
| CWE-807 | 2 | 6.9% |
| CWE-787 Out-of-bounds write | 2 | 6.9% |
| CWE-294 | 1 | 3.4% |
| CWE-863 Incorrect authorization | 1 | 3.4% |
| CWE-19 | 1 | 3.4% |
| CWE-416 Use after free | 1 | 3.4% |
EAll entries
| CVE | Vulnerability | Added | Due | Ransomware | CWE |
|---|---|---|---|---|---|
| CVE-2009-0238 | Microsoft Office Remote Code Execution | Unknown | CWE-94 | ||
| CVE-2026-21514 | Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability | Unknown | CWE-807 | ||
| CVE-2026-21509 | Microsoft Office Security Feature Bypass Vulnerability | Unknown | CWE-807 | ||
| CVE-2009-0556 | Microsoft Office PowerPoint Code Injection Vulnerability | Unknown | CWE-94 | ||
| CVE-2007-0671 | Microsoft Office Excel Remote Code Execution Vulnerability | Unknown | none listed | ||
| CVE-2023-23397 | Microsoft Office Outlook Privilege Escalation Vulnerability | Unknown | CWE-294 | ||
| CVE-2023-21715 | Microsoft Office Publisher Security Feature Bypass Vulnerability | Unknown | CWE-863 | ||
| CVE-2013-1331 | Microsoft Office Buffer Overflow Vulnerability | Unknown | CWE-119 | ||
| CVE-2009-0563 | Microsoft Office Buffer Overflow Vulnerability | Unknown | CWE-119 | ||
| CVE-2009-0557 | Microsoft Office Object Record Corruption Vulnerability | Unknown | CWE-94 | ||
| CVE-2021-38646 | Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability | Known | none listed | ||
| CVE-2015-1770 | Microsoft Office Uninitialized Memory Use Vulnerability | Unknown | CWE-19 | ||
| CVE-2017-11826 | Microsoft Office Remote Code Execution Vulnerability | Unknown | CWE-119 | ||
| CVE-2017-0261 | Microsoft Office Use-After-Free Vulnerability | Unknown | CWE-416 | ||
| CVE-2016-7193 | Microsoft Office Memory Corruption Vulnerability | Unknown | CWE-119 | ||
| CVE-2015-2545 | Microsoft Office Malformed EPS File Vulnerability | Unknown | CWE-20 | ||
| CVE-2015-1642 | Microsoft Office Memory Corruption Vulnerability | Unknown | CWE-119 | ||
| CVE-2012-1856 | Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability | Unknown | CWE-94 | ||
| CVE-2010-3333 | Microsoft Office Stack-based Buffer Overflow Vulnerability | Unknown | CWE-119 | ||
| CVE-2017-8570 | Microsoft Office Remote Code Execution Vulnerability | Unknown | none listed | ||
| CVE-2017-0262 | Microsoft Office Remote Code Execution Vulnerability | Unknown | none listed | ||
| CVE-2021-42292 | Microsoft Excel Security Feature Bypass | Unknown | CWE-357 | ||
| CVE-2021-27059 | Microsoft Office Remote Code Execution Vulnerability | Unknown | none listed | ||
| CVE-2018-0802 | Microsoft Office Memory Corruption Vulnerability | Known | CWE-787 | ||
| CVE-2018-0798 | Microsoft Office Memory Corruption Vulnerability | Unknown | CWE-787 | ||
| CVE-2017-11882 | Microsoft Office Memory Corruption Vulnerability | Known | CWE-119 | ||
| CVE-2017-11774 | Microsoft Office Outlook Security Feature Bypass Vulnerability | Unknown | CWE-119 | ||
| CVE-2016-3235 | Microsoft Office OLE DLL Side Loading Vulnerability | Unknown | CWE-264 | ||
| CVE-2015-1641 | Microsoft Office Memory Corruption Vulnerability | Unknown | CWE-399 |
Cite this
CISA's KEV catalog lists 29 vulnerabilities in Microsoft Office. Source: Telemetry analysis of the CISA Known Exploited Vulnerabilities catalog, version 2026.09.23 (released 2026-09-23). https://glide-telemetry.pages.dev/products/microsoft-office/
Source: CISA KEV catalog v2026.09.23, released 2026-09-23. Windows end 2026-09-23.