Windows Rich Text Edit Control Remote Code Execution Vulnerability
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-70096US | critical9.8 | — | ||
Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network. | ||||
references
External citations — patches, advisories, analysis.
- CVE-2026-70096 Windows Rich Text Edit Control Remote Code Execution Vulnerability - CSAFself
- CVE-2026-70096 Windows Rich Text Edit Control Remote Code Execution Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
remediations (41)
- FixedMicrosoft 365 Apps for Enterprise for 32-bit Systems
https://aka.ms/OfficeSecurityReleases:Security Update:https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft 365 Apps for Enterprise for 64-bit Systems
https://aka.ms/OfficeSecurityReleases:Security Update:https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 365 for Mac
16.114.26101123:Security Update:https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac
https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac - FixedMicrosoft Office LTSC 2021 for 32-bit editions
16.0.14334.20974:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2021 for 64-bit editions
16.0.14334.20974:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2024 for 32-bit editions
16.0.17932.21056:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2024 for 64-bit editions
16.0.17932.21056:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC for Mac 2021
16.114.26101123:Security Update:https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac
https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac - FixedMicrosoft Office LTSC for Mac 2024
16.114.26101123:Security Update:https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac
https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac - FixedWindows 10 Version 1607 for 32-bit Systems
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868 - FixedWindows 10 Version 1607 for x64-based Systems
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868 - FixedWindows 10 Version 1809 for 32-bit Systems
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651 - FixedWindows 10 Version 1809 for x64-based Systems
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651 - FixedWindows 10 Version 21H2 for 32-bit Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 21H2 for ARM64-based Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 21H2 for x64-based Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for 32-bit Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for ARM64-based Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for x64-based Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 11 Version 23H2 for ARM64-based Systems
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653 - FixedWindows 11 Version 23H2 for x64-based Systems
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653 - FixedWindows 11 Version 24H2 for ARM64-based Systems
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 24H2 for x64-based Systems
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 25H2 for ARM64-based Systems
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 25H2 for x64-based Systems
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 26H1 for ARM64-based Systems
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646 - FixedWindows 11 Version 26H2 for ARM64-based Systems
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 26H2 for x64-based Systems
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 version 26H1 for x64-based Systems
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646 - FixedWindows Server 2012
6.2.9200.26434:Security Update:https://support.microsoft.com/help/5126835
https://support.microsoft.com/help/5126835 - FixedWindows Server 2012 (Server Core installation)
6.2.9200.26434:Security Update:https://support.microsoft.com/help/5126835
https://support.microsoft.com/help/5126835 - FixedWindows Server 2012 R2
6.3.9600.23470:Security Update:https://support.microsoft.com/help/5126836
https://support.microsoft.com/help/5126836 - FixedWindows Server 2012 R2 (Server Core installation)
6.3.9600.23470:Security Update:https://support.microsoft.com/help/5126836
https://support.microsoft.com/help/5126836 - FixedWindows Server 2016
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868 - FixedWindows Server 2016 (Server Core installation)
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868 - FixedWindows Server 2019
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651 - FixedWindows Server 2019 (Server Core installation)
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651 - FixedWindows Server 2022
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655 - FixedWindows Server 2022 (Server Core installation)
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655 - FixedWindows Server 2025
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646 - FixedWindows Server 2025 (Server Core installation)
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646
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