CVE-2026-70302— Microsoft Office Word 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.
在 Microsoft Office Word 中存在一个基于堆的缓冲区溢出漏洞，允许未经授权的攻击者通过网络执行代码。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1203 · Exploitation for Client ExecutionAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1< https://aka.ms/OfficeSecurityReleases |
affected |
| Microsoft | Microsoft Office 365 for Mac | 1.0.0< publication |
affected |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1< 16.0.14334.20974 |
affected |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0< 16.0.17932.21056 |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1< publication |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0< publication |
affected |
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I. Basic Information for CVE-2026-70302
Vulnerability Information
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Vulnerability Title
Microsoft Office Word Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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 ~ https://aka.ms/OfficeSecurityReleases | - |
|
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 ~ publication | - |
|
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ~ 16.0.14334.20974 | - |
|
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ~ 16.0.17932.21056 | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 ~ publication | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 ~ publication | - |
|
II. Public POCs for CVE-2026-70302
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-70302 (1)
Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total
| CVE-2026-100202 | 9.8 CRITICAL | Windows Message Queuing Queue Manager Remote Code Execution Vulnerability |
| CVE-2026-69883 | 9.8 CRITICAL | Windows iSCSI Remote Code Execution Vulnerability |
| CVE-2026-84015 | 9.8 CRITICAL | Remote Access Point-to-Point Protocol (PPP) EAP-TLS Remote Code Execution Vulnerability |
| CVE-2026-70291 | 9.8 CRITICAL | Microsoft Office Outlook Remote Code Execution Vulnerability |
| CVE-2026-69634 | 9.8 CRITICAL | Windows iSCSI Remote Code Execution Vulnerability |
| CVE-2026-70242 | 9.8 CRITICAL | Microsoft Office Outlook Remote Code Execution Vulnerability |
| CVE-2026-96096 | 9.8 CRITICAL | Windows Media Player Remote Code Execution Vulnerability |
| CVE-2026-70300 | 9.8 CRITICAL | Microsoft Office Word Remote Code Execution Vulnerability |
| CVE-2026-70157 | 9.8 CRITICAL | Windows System Information Console Remote Code Execution Vulnerability |
| CVE-2026-88156 | 9.8 CRITICAL | Microsoft Office Outlook Remote Code Execution Vulnerability |
| CVE-2026-88178 | 9.8 CRITICAL | Microsoft Office PowerPoint Remote Code Execution Vulnerability |
| CVE-2026-97816 | 9.8 CRITICAL | Microsoft OpenSSH for Windows Remote Code Execution Vulnerability |
| CVE-2026-69639 | 9.8 CRITICAL | Windows libarchive Remote Code Execution Vulnerability |
| CVE-2026-83935 | 9.8 CRITICAL | Microsoft XML Remote Code Execution Vulnerability |
| CVE-2026-85806 | 9.8 CRITICAL | Network Policy Server (NPS) Remote Code Execution Vulnerability |
| CVE-2026-83862 | 9.8 CRITICAL | Windows Network Load Balancing Remote Code Execution Vulnerability |
| CVE-2026-85814 | 9.8 CRITICAL | Microsoft Windows Media Foundation Remote Code Execution Vulnerability |
| CVE-2026-85809 | 9.8 CRITICAL | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2026-85792 | 9.8 CRITICAL | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2026-100222 | 9.8 CRITICAL | Network Policy Server (NPS) Remote Code Execution Vulnerability |
Showing top 20 of 1407 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-70302
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