๐Ÿ” CVE Alert

CVE-2026-70096

CRITICAL 9.8

Windows Rich Text Edit Control Remote Code Execution Vulnerability

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.

Vendor microsoft
Product microsoft 365 apps for enterprise
Ecosystems
Industries
TechnologyEnterprise
Published Oct 13, 2026
Last Updated Oct 13, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

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

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
msrc.microsoft.com: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70096