CVE-2026-55050— Microsoft Word Information Disclosure 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.
Microsoft Office Word是美国Microsoft公司的一款文字处理软件。 Microsoft Office Word存在缓冲区错误漏洞，该漏洞源于存在越界读取问题，可能导致未授权攻击者在本地泄露信息。以下版本受到影响：Microsoft 365 Apps for Enterprise 16.0.1版本之前版本、Microsoft Office 2019 19.0.0版本之前版本、Microsoft Office 365 for Mac 1.0.0版本之前版本、Microsoft Offi
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local SystemAffected Version Matrix 11
| 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 |
| Microsoft | Microsoft Office 365 for Mac | 1.0.0< 16.111.26071215 |
affected |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1< https://aka.ms/OfficeSecurityReleases |
affected |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0< https://aka.ms/OfficeSecurityReleases |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1< 16.111.26071215 |
affected |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0< 16.111.26071215 |
affected |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0< 16.0.5561.1001 |
affected |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0< 16.0.10417.20175 |
affected |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0< 16.0.19725.20434 |
affected |
| Microsoft | Microsoft Word 2016 | 16.0.1< 16.0.5561.1000 |
affected |
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-55050
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Microsoft Word Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information 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:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Office Word 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Office Word是美国Microsoft公司的一款文字处理软件。 Microsoft Office Word存在缓冲区错误漏洞，该漏洞源于存在越界读取问题，可能导致未授权攻击者在本地泄露信息。以下版本受到影响：Microsoft 365 Apps for Enterprise 16.0.1版本之前版本、Microsoft Office 2019 19.0.0版本之前版本、Microsoft Office 365 for Mac 1.0.0版本之前版本、Microsoft Offi
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 | - |
|
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 ~ 16.111.26071215 | - |
|
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ~ https://aka.ms/OfficeSecurityReleases | - |
|
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ~ https://aka.ms/OfficeSecurityReleases | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 ~ 16.111.26071215 | - |
|
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 ~ 16.111.26071215 | - |
|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 ~ 16.0.5561.1001 | - |
|
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 ~ 16.0.10417.20175 | - |
|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 ~ 16.0.19725.20434 | - |
|
| Microsoft | Microsoft Word 2016 | 16.0.1 ~ 16.0.5561.1000 | - |
|
II. Public POCs for CVE-2026-55050
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-55050
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-55050 (1)
Same Patch Batch · Microsoft · 2026-07-14 · 570 CVEs total
| CVE-2026-57092 | 9.9 CRITICAL | Microsoft Windows VMSwitch Elevation of Privilege Vulnerability |
| CVE-2026-56190 | 9.8 CRITICAL | Remote Desktop Protocol Remote Code Execution Vulnerability |
| CVE-2026-50518 | 9.8 CRITICAL | Windows DHCP Server Remote Code Execution Vulnerability |
| CVE-2026-56159 | 9.8 CRITICAL | DHCP Server Service Remote Code Execution Vulnerability |
| CVE-2026-55944 | 9.8 CRITICAL | Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Co |
| CVE-2026-42990 | 9.8 CRITICAL | SQL Server ODBC driver Elevation of Privilege Vulnerability |
| CVE-2026-54118 | 9.8 CRITICAL | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-56188 | 9.8 CRITICAL | Windows Server Network driver Remote Code Execution Vulnerability |
| CVE-2026-54117 | 9.8 CRITICAL | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-50522 | 9.8 CRITICAL | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-54990 | 9.8 CRITICAL | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2026-58644 | 9.8 CRITICAL | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-50447 | 9.8 CRITICAL | Windows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability |
| CVE-2026-55010 | 9.8 CRITICAL | Minecraft Bedrock Dedicated Server Remote Code Execution Vulnerability |
| CVE-2026-49172 | 9.8 CRITICAL | Windows FTP Service Remote Code Execution Vulnerability |
| CVE-2026-48561 | 9.6 CRITICAL | Microsoft Edge Copilot Remote Code Execution Vulnerability |
| CVE-2026-50380 | 9.6 CRITICAL | Windows GDI+ Remote Code Execution Vulnerability |
| CVE-2026-55008 | 9.6 CRITICAL | Microsoft Exchange Server Spoofing Vulnerability |
| CVE-2026-49798 | 9.3 CRITICAL | Windows Kernel Elevation of Privilege Vulnerability |
| CVE-2026-55040 | 9.1 CRITICAL | Microsoft SharePoint Server Security Feature Bypass Vulnerability |
Showing top 20 of 570 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Microsoft 365 Apps for Enterprise
-
CVE-2026-70105
Microsoft Word Information Disclosure Vulnerability -
CVE-2026-70130
Microsoft Office Remote Code Execution Vulnerability -
CVE-2026-68814
Microsoft Excel Remote Code Execution Vulnerability -
CVE-2026-68817
Microsoft Excel Remote Code Execution Vulnerability -
CVE-2026-68812
Microsoft Excel Remote Code Execution Vulnerability
Same vendor: Microsoft
-
CVE-2026-62316
Microsoft UFO: DNS Rebinding → Unauthenticated File Read / C -
CVE-2026-69502
Azure SQL Database Elevation of Privilege Vulnerability -
CVE-2026-69855
Microsoft Copilot in Azure Information Disclosure Vulnerabil -
CVE-2026-69543
Azure Virtual Machines Elevation of Privilege Vulnerability -
CVE-2026-69558
Microsoft Partner Center Information Disclosure Vulnerabilit
Same weakness: CWE-125
-
CVE-2026-82330
Gimp: heap out-of-bounds read in pvr vq (compressed) decoder -
CVE-2026-82328
Gimp: heap out-of-bounds read in ico loader via unvalidated -
CVE-2026-82324
Gimp: heap out-of-bounds reads in iff/ilbm loader from ham r -
CVE-2026-40015
IMAP-hibernate越界读致进程崩溃 -
CVE-2026-19315
Fireware OS Pre-Authentication Type Confusion in iked Allows
V. Comments for CVE-2026-55050
No comments yet