Vulnerability details
CVE-2026-20948
Microsoft 365 Apps for EnterpriseMicrosoft OfficeMicrosoft Office LTSCMicrosoft Office LTSC for MacMicrosoft SharePoint Enterprise ServerMicrosoft SharePoint Server
Microsoft Word Remote Code Execution Vulnerability
CVSS 3.1
7.8High
Official description
Untrusted pointer dereference 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 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 < 16.105.26011018 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 ≤ v < 16.105.26011018 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 ≤ v < 16.0.5535.1001 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 ≤ v < 16.0.10417.20083 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Word 2016 | 16.0.1 ≤ v < 16.0.5535.1000 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20948 vendor-advisorypatch
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Details
- Published
- 2026-01-13
- Last updated
- 2026-07-31
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.59%
Probability of exploitation in 30 days
48.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-822Untrusted Pointer Dereference