Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-70328— Microsoft Excel 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 Excel是美国Microsoft公司的一款电子表格处理软件。 Microsoft Office Excel存在缓冲区错误漏洞，该漏洞源于越界读取，可能导致未经授权的攻击者通过网络泄露信息。

CVSS 6.5 · Medium EPSS 0.85% · P55

Affected Version Matrix 9

VendorProduct Version RangeStatus
Microsoft Microsoft 365 Apps for Enterprise 16.0.1< https://aka.ms/OfficeSecurityReleases affected
Microsoft Microsoft Excel 2016 16.0.0.0< 16.0.5565.1001 affected
Microsoft Microsoft Office 2019 19.0.0< https://aka.ms/OfficeSecurityReleases affected
Microsoft Microsoft Office 365 for Mac 1.0.0< 16.112.26081010 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< 16.112.26081010 affected
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0< 16.112.26081010 affected
Microsoft Office Online Server 16.0.0.0< 16.0.10417.20175 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-70328

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 Excel Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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: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 Excel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Office Excel是美国Microsoft公司的一款电子表格处理软件。 Microsoft Office Excel存在缓冲区错误漏洞，该漏洞源于越界读取，可能导致未经授权的攻击者通过网络泄露信息。
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 Excel 2016 16.0.0.0 ~ 16.0.5565.1001 -
Microsoft Microsoft Office 2019 19.0.0 ~ https://aka.ms/OfficeSecurityReleases -
Microsoft Microsoft Office 365 for Mac 1.0.0 ~ 16.112.26081010 -
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 ~ 16.112.26081010 -
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 ~ 16.112.26081010 -
Microsoft Office Online Server 16.0.0.0 ~ 16.0.10417.20175 -

II. Public POCs for CVE-2026-70328

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-70328

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-70328 (1)

Same Patch Batch · Microsoft · 2026-08-11 · 402 CVEs total

CVE-2026-62878 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-62893 9.8 CRITICAL Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
CVE-2026-62815 9.8 CRITICAL Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-65791 9.8 CRITICAL Windows iSCSI Target Service Remote Code Execution Vulnerability
CVE-2026-59124 9.8 CRITICAL Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability
CVE-2026-50516 9.4 CRITICAL Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
CVE-2026-70306 9.3 CRITICAL Microsoft Office SharePoint Spoofing Vulnerability
CVE-2026-65767 8.8 HIGH Microsoft Teams for Android Spoofing Vulnerability
CVE-2026-65807 8.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-62795 8.8 HIGH Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
CVE-2026-62817 8.8 HIGH Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-62816 8.8 HIGH Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
CVE-2026-69320 8.8 HIGH Visual Studio Code Remote Code Execution Vulnerability
CVE-2026-62818 8.8 HIGH Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
CVE-2026-62872 8.8 HIGH .NET Framework Elevation of Privilege Vulnerability
CVE-2026-62913 8.8 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2026-70337 8.8 HIGH Microsoft PowerShell Remote Code Execution Vulnerability
CVE-2026-70324 8.8 HIGH Microsoft SharePoint Elevation of Privilege Vulnerability
CVE-2026-70329 8.8 HIGH Microsoft Outlook Remote Code Execution Vulnerability
CVE-2026-66805 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability

Showing top 20 of 402 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft 365 Apps for Enterprise
Same vendor: Microsoft
Same weakness: CWE-125

V. Comments for CVE-2026-70328

No comments yet

Leave a comment