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CVE-2026-70096— Windows Rich Text Edit Control 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.

Windows 富文本编辑控件中存在基于堆的缓冲区溢出漏洞，该漏洞允许未经授权的攻击者在网络上执行代码。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 27

VendorProduct Version RangeStatus
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
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows 10 Version 21H2 10.0.19044.0< 10.0.19044.7807 affected
Microsoft Windows 10 Version 22H2 10.0.19045.0< 10.0.19044.7807 affected
Microsoft Windows 11 version 23H2 10.0.22631.0< 10.0.22631.7652 affected
Microsoft Windows 11 Version 23H2 10.0.22631.0< 10.0.22631.7652 affected
Microsoft Windows 11 Version 24H2 10.0.26100.0< 10.0.26100.9711 affected
Microsoft Windows 11 Version 25H2 10.0.26200.0< 10.0.26200.9711 affected
Microsoft Windows 11 version 26H1 10.0.28000.0< 10.0.28000.3231 affected
Microsoft Windows 11 Version 26H2 10.0.26300.0< 10.0.26300.9711 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26434 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26434 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23470 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23470 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5761 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33650 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33650 affected
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I. Basic Information for CVE-2026-70096

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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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
Windows Rich Text Edit Control Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Windows Rich Text Edit Control 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:N/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 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.7807 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19044.7807 -
Microsoft Windows 11 version 23H2 10.0.22631.0 ~ 10.0.22631.7652 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.7652 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.9711 -
Microsoft Windows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.9711 -
Microsoft Windows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.3231 -
Microsoft Windows 11 Version 26H2 10.0.26300.0 ~ 10.0.26300.9711 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26434 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26434 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23470 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23470 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5761 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33650 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33650 -

II. Public POCs for CVE-2026-70096

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III. Intelligence Information for CVE-2026-70096

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Vendor Advisories for CVE-2026-70096 (1)

Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total

CVE-2026-83935 9.8 CRITICAL Microsoft XML 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-2026-97816 9.8 CRITICAL Microsoft OpenSSH for Windows 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-2026-69639 9.8 CRITICAL Windows libarchive Remote Code Execution Vulnerability
CVE-2026-100202 9.8 CRITICAL Windows Message Queuing Queue Manager Remote Code Execution Vulnerability
CVE-2026-85809 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
CVE-2026-96864 9.8 CRITICAL Microsoft Failover Cluster Virtual Driver Remote Code Execution Vulnerability
CVE-2026-85814 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-96219 9.8 CRITICAL Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerabi
CVE-2026-83862 9.8 CRITICAL Windows Network Load Balancing Remote Code Execution Vulnerability

Showing top 20 of 1407 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft 365 Apps for Enterprise
Same vendor: Microsoft
Same weakness: CWE-122

V. Comments for CVE-2026-70096

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