CVE-2021-34478— Microsoft Office Remote Code Execution Vulnerability
Quick assessment
Affected
Microsoft Microsoft 365 Apps for Enterprise
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Office是美国微软（Microsoft）公司的一款办公软件套件产品。该产品常用组件包括Word、Excel、Access、Powerpoint、FrontPage等。 Microsoft Microsoft Office存在代码注入漏洞。以下产品和版本受到影响：Microsoft Office 2019 for 32-bit editions,Microsoft Office 2019 for 64-bit editions,Microsoft 365 Apps for Enter
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1< https://aka.ms/OfficeSecurityReleases |
affected |
| Microsoft | Microsoft Office 2019 | 19.0.0< https://aka.ms/OfficeSecurityReleases |
affected |
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I. Basic Information for CVE-2021-34478
Vulnerability Information
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Vulnerability Title
Microsoft Office Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Office Remote Code Execution Vulnerability
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Office 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Office是美国微软（Microsoft）公司的一款办公软件套件产品。该产品常用组件包括Word、Excel、Access、Powerpoint、FrontPage等。 Microsoft Microsoft Office存在代码注入漏洞。以下产品和版本受到影响：Microsoft Office 2019 for 32-bit editions,Microsoft Office 2019 for 64-bit editions,Microsoft 365 Apps for Enter
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 ~ https://aka.ms/OfficeSecurityReleases | - |
|
| Microsoft | Microsoft Office 2019 | 19.0.0 ~ https://aka.ms/OfficeSecurityReleases | - |
|
II. Public POCs for CVE-2021-34478
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-34478 (2)
-
https://www.zerodayinitiative.com/advisories/ZDI-21-1024/ x_refsource_MISC
-
🔗 Security Update Guide - Microsoft Security Response Center Read full article vendor-advisory patch
Same Patch Batch · Microsoft · 2021-08-12 · 45 CVEs total
| CVE-2021-26424 | 9.9 CRITICAL | Windows TCP/IP Remote Code Execution Vulnerability |
| CVE-2021-26432 | 9.8 CRITICAL | Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability |
| CVE-2021-36947 | 8.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-34535 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2021-36936 | 8.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-34524 | 8.1 HIGH | Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability |
| CVE-2021-34537 | 7.8 HIGH | Windows Bluetooth Driver Elevation of Privilege Vulnerability |
| CVE-2021-36958 | 7.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-26431 | 7.8 HIGH | Windows Recovery Environment Agent Elevation of Privilege Vulnerability |
| CVE-2021-26425 | 7.8 HIGH | Windows Event Tracing Elevation of Privilege Vulnerability |
| CVE-2021-34471 | 7.8 HIGH | Microsoft Defender Elevation of Privilege Vulnerability |
| CVE-2021-36948 | 7.8 HIGH | Windows Update Medic Service Elevation of Privilege Vulnerability |
| CVE-2021-34483 | 7.8 HIGH | Windows Print Spooler Elevation of Privilege Vulnerability |
| CVE-2021-36927 | 7.8 HIGH | Windows Digital TV Tuner device registration application Elevation of Privilege Vulnerabil |
| CVE-2021-34484 | 7.8 HIGH | Windows User Profile Service Elevation of Privilege Vulnerability |
| CVE-2021-36937 | 7.8 HIGH | Windows Media MPEG-4 Video Decoder Remote Code Execution Vulnerability |
| CVE-2021-34536 | 7.8 HIGH | Windows Storage Spaces Controller Elevation of Privilege Vulnerability |
| CVE-2021-34486 | 7.8 HIGH | Windows Event Tracing Elevation of Privilege Vulnerability |
| CVE-2021-34533 | 7.8 HIGH | Windows Graphics Component Font Parsing Remote Code Execution Vulnerability |
| CVE-2021-34530 | 7.8 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
Showing top 20 of 45 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2021-34478
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