CVE-2026-69909

HighCVSS 7.8/10Last modified Oct 16, 2026

Description

Heap-based buffer overflow in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

VendorProductVersions
MicrosoftWindows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7807
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7807
MicrosoftWindows 11 version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.9711
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.9711
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.3231
MicrosoftWindows 11 Version 26H2>= 10.0.26300.0, < 10.0.26300.9711
MicrosoftWindows Server 2012>= 6.2.9200.0, < 6.2.9200.26434
MicrosoftWindows Server 2012 (Server Core installation)>= 6.2.9200.0, < 6.2.9200.26434
MicrosoftWindows Server 2012 R2>= 6.3.9600.0, < 6.3.9600.23470
MicrosoftWindows Server 2012 R2 (Server Core installation)>= 6.3.9600.0, < 6.3.9600.23470
MicrosoftWindows Server 2016>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5761
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33650
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33650

References

Timeline

Published
Oct 13, 2026
Last modified
Oct 16, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-69916.3A vulnerability was determined in colinhacks Zod up to 4.3.6. The impacted element is an unknown function of the file packages/zod/src/v4/coCVE-2026-699109.8Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.CVE-2026-699117.0Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-699138.1Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.CVE-2026-699145.5Out-of-bounds read in Windows AppX Deployment Service allows an authorized attacker to disclose information locally.CVE-2026-699157.0Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-699167.8Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-699187.8Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges locally.CVE-2026-699195.5Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.CVE-2026-69927.2A vulnerability was identified in Linksys MR9600 2.0.6.206937. This affects the function BTRequestGetSmartConnectStatus of the file /etc/iniCVE-2026-699217.8Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.CVE-2026-699226.5Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-69909: High severity, CVSS 7.8 | Vulnix