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Windows Rich Text Edit Control Remote Code Execution Vulnerability (Microsoft Microsoft 365 Apps for Enterprise)

CVE-2026-70096
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 1.09 % · percentile 65 ()
State
PUBLISHED
Published
Updated
Assigner
microsoft
NVD status
Undergoing Analysis

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Description

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

Weaknesses (CWE)

  • CWE-122 — Heap-based Buffer Overflow

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Cmicrosoft
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · secure@microsoft.com (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Microsoft · Microsoft 365 Apps for Enterpriseaffected 16.0.1 < https://aka.ms/OfficeSecurityReleases
Microsoft · Microsoft Office 365 for Macaffected 1.0.0 < 16.114.26101123
Microsoft · Microsoft Office LTSC 2021affected 16.0.1 < 16.0.14334.20974
Microsoft · Microsoft Office LTSC 2024affected 16.0.0 < 16.0.17932.21056
Microsoft · Microsoft Office LTSC for Mac 2021affected 16.0.1 < 16.114.26101123
Microsoft · Microsoft Office LTSC for Mac 2024affected 16.0.0 < 16.114.26101123
Microsoft · Windows 10 Version 1607affected 10.0.14393.0 < 10.0.14393.9612
Microsoft · Windows 10 Version 1809affected 10.0.17763.0 < 10.0.17763.9376
Microsoft · Windows 10 Version 21H2affected 10.0.19044.0 < 10.0.19044.7807
Microsoft · Windows 10 Version 22H2affected 10.0.19045.0 < 10.0.19045.7807
Microsoft · Windows 11 version 23H2affected 10.0.22631.0 < 10.0.22631.7652
Microsoft · Windows 11 Version 23H2affected 10.0.22631.0 < 10.0.22631.7652
Microsoft · Windows 11 Version 24H2affected 10.0.26100.0 < 10.0.26100.9711
Microsoft · Windows 11 Version 25H2affected 10.0.26200.0 < 10.0.26200.9711
Microsoft · Windows 11 version 26H1affected 10.0.28000.0 < 10.0.28000.3231
Microsoft · Windows 11 Version 26H2affected 10.0.26300.0 < 10.0.26300.9711
Microsoft · Windows Server 2012affected 6.2.9200.0 < 6.2.9200.26434
Microsoft · Windows Server 2012 (Server Core installation)affected 6.2.9200.0 < 6.2.9200.26434
Microsoft · Windows Server 2012 R2affected 6.3.9600.0 < 6.3.9600.23470
Microsoft · Windows Server 2012 R2 (Server Core installation)affected 6.3.9600.0 < 6.3.9600.23470

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD