# Microsoft Office LTSC 2021.

Every CVE that names Microsoft Office LTSC 2021 among its affected products, newest first. Vendors and products are as the CNA wrote them.

## Records, newest first (an older page)

- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55130.md)
  `CVE-2026-55130` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55128.md)
  `CVE-2026-55128` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55140.md)
  `CVE-2026-55140` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55142.md)
  `CVE-2026-55142` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: CWE-197
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55056.md)
  `CVE-2026-55056` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55134.md)
  `CVE-2026-55134` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55131.md)
  `CVE-2026-55131` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55057.md)
  `CVE-2026-55057` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55122.md)
  `CVE-2026-55122` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.1 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55053.md)
  `CVE-2026-55053` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55137.md)
  `CVE-2026-55137` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55132.md)
  `CVE-2026-55132` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55038.md)
  `CVE-2026-55038` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55058.md)
  `CVE-2026-55058` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55037.md)
  `CVE-2026-55037` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55054.md)
  `CVE-2026-55054` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 6.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55055.md)
  `CVE-2026-55055` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55044.md)
  `CVE-2026-55044` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55036.md)
  `CVE-2026-55036` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: CWE-126
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55035.md)
  `CVE-2026-55035` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55129.md)
  `CVE-2026-55129` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55141.md)
  `CVE-2026-55141` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55136.md)
  `CVE-2026-55136` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55127.md)
  `CVE-2026-55127` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55124.md)
  `CVE-2026-55124` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: CWE-20, CWE-1287
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55138.md)
  `CVE-2026-55138` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55041.md)
  `CVE-2026-55041` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55033.md)
  `CVE-2026-55033` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55032.md)
  `CVE-2026-55032` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55049.md)
  `CVE-2026-55049` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Word Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55050.md)
  `CVE-2026-55050` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55045.md)
  `CVE-2026-55045` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 8.4 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55039.md)
  `CVE-2026-55039` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55047.md)
  `CVE-2026-55047` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55028.md)
  `CVE-2026-55028` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55029.md)
  `CVE-2026-55029` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55027.md)
  `CVE-2026-55027` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55048.md)
  `CVE-2026-55048` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55026.md)
  `CVE-2026-55026` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 6.2 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55031.md)
  `CVE-2026-55031` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55125.md)
  `CVE-2026-55125` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55025.md)
  `CVE-2026-55025` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55023.md)
  `CVE-2026-55023` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55022.md)
  `CVE-2026-55022` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-55046.md)
  `CVE-2026-55046` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55018.md)
  `CVE-2026-55018` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-50408.md)
  `CVE-2026-50408` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55024.md)
  `CVE-2026-55024` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55017.md)
  `CVE-2026-55017` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-50467.md)
  `CVE-2026-50467` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-50314.md)
  `CVE-2026-50314` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-50301.md)
  `CVE-2026-50301` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-48580.md)
  `CVE-2026-48580` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 5.5 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-47642.md)
  `CVE-2026-47642` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-47290.md)
  `CVE-2026-47290` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-58618.md)
  `CVE-2026-58618` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Office Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-56193.md)
  `CVE-2026-56193` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.1 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55948.md)
  `CVE-2026-55948` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption
- [Microsoft Excel Remote Code Execution Vulnerability](https://agentprime.io/advisories/CVE-2026-55899.md)
  `CVE-2026-55899` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 7.8 High · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption, CWE-20
- [Microsoft Excel Information Disclosure Vulnerability](https://agentprime.io/advisories/CVE-2026-54988.md)
  `CVE-2026-54988` · CVE record: Microsoft Microsoft 365 Apps for Enterprise and 4 more · CVSS 6.1 Medium · Not analysed yet · Published 14 Jul 2026 · Tags: Memory corruption

Newest: <https://agentprime.io/advisories/technology/microsoft-office-ltsc-2021.md>
Older: <https://agentprime.io/advisories/technology/microsoft-office-ltsc-2021.md?cursor=WyIyMDI2LTA3LTE0VDE3OjA1OjA5LjQyNTAwMFoiLCJDVkUtMjAyNi01NDk4OCJd>

## Filters and formats

Filters are query parameters on this URL: `q` (words, as in a web search engine: `"a phrase"`, `OR`, `-word`; an id; a package or product name), `severity` (low, medium, high or critical), `critical=1`, `kev=1`, `ecosystem` (npm, pypi, packagist, go, maven, rubygems, crates, nuget, hex), `kind=package`, `assigner` (a CNA’s short name), `min_score` and `state`. Each record’s title links to its Markdown page.

- The same list as JSON: <https://api.agentprime.io/v1/advisories?technology=microsoft-office-ltsc-2021&cursor=WyIyMDI2LTA3LTE0VDE3OjA5OjAzLjU1NDAwMFoiLCJDVkUtMjAyNi01NTA0MiJd>
- Every list: <https://agentprime.io/advisories.md>, critical: <https://agentprime.io/advisories/critical.md>; by weakness: <https://agentprime.io/advisories/tag/sql-injection.md> and the other tags in <https://agentprime.io/llms.txt>; by technology: `/advisories/technology/<slug>.md` (`fortinet-fortimail`)

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The web page: <https://agentprime.io/advisories/technology/microsoft-office-ltsc-2021/?cursor=WyIyMDI2LTA3LTE0VDE3OjA5OjAzLjU1NDAwMFoiLCJDVkUtMjAyNi01NTA0MiJd>. Everything for agents: <https://agentprime.io/llms.txt>.