Vulnerability details
CVE-2026-55032
Microsoft 365 Apps for EnterpriseMicrosoft OfficeMicrosoft Office 365 for MacMicrosoft Office LTSCMicrosoft Office LTSC for MacMicrosoft SharePoint Enterprise Server
Microsoft Word Remote Code Execution Vulnerability
CVSS 3.1
7.8High
Official description
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office 2019 | 19.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 ≤ v < 16.111.26071215 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 ≤ v < 16.111.26071215 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 ≤ v < 16.111.26071215 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 ≤ v < 16.0.5561.1001 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 ≤ v < 16.0.10417.20175 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 ≤ v < 16.0.19725.20434 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Word 2016 | 16.0.1 ≤ v < 16.0.5561.1000 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55032 vendor-advisorypatch
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-07-14
- Last updated
- 2026-11-01
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-416Use After Free