CVE-2026-81948— Microsoft Excel Remote Code Execution Vulnerability
Quick assessment
Affected
Microsoft Microsoft 365 Apps for Enterprise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
微软 Office Excel 中的堆缓冲区溢出漏洞允许未授权的攻击者通过本地方式执行代码。
Affected Version Matrix 9
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1< 16.0.20326.20138 |
affected |
| Microsoft | Microsoft Excel 2016 | 16.0.0.0< 16.0.5569.1003 |
affected |
| Microsoft | Microsoft Office 2016 | 16.0.0< 16.0.5569.1003 |
affected |
| Microsoft | Microsoft Office 2019 | 19.0.0< 16.0.10417.20207 |
affected |
| Microsoft | Microsoft Office 365 for Mac | - |
affected |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1< 16.0.14334.20906 |
affected |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0< 16.0.17932.20976 |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2021 | - |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2024 | - |
affected |
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I. Basic Information for CVE-2026-81948
Vulnerability Information
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Vulnerability Title
Microsoft Excel Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 ~ 16.0.20326.20138 | - |
|
| Microsoft | Microsoft Excel 2016 | 16.0.0.0 ~ 16.0.5569.1003 | - |
|
| Microsoft | Microsoft Office 2016 | 16.0.0 ~ 16.0.5569.1003 | - |
|
| Microsoft | Microsoft Office 2019 | 19.0.0 ~ 16.0.10417.20207 | - |
|
| Microsoft | Microsoft Office 365 for Mac | - | - |
|
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ~ 16.0.14334.20906 | - |
|
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ~ 16.0.17932.20976 | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2021 | - | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2024 | - | - |
|
II. Public POCs for CVE-2026-81948
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-81948 (1)
-
🔗 Security Update Guide - Microsoft Security Response Center Read full article vendor-advisory patch
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V. Comments for CVE-2026-81948
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