CVE-2026-69883

CriticalCVSS 9.8/10Last modified Oct 19, 2026

Description

Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

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 19, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-698847.8Buffer over-read in Windows GDI allows an authorized attacker to elevate privileges locally.CVE-2026-698869.8Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.CVE-2026-698897.0Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.CVE-2026-69898.8A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the componentCVE-2026-698907.5Use after free in Windows Virtual Trusted Platform Module allows an authorized attacker to elevate privileges locally.CVE-2026-698917.0Use after free in Windows Media allows an authorized attacker to elevate privileges locally.CVE-2026-698954.7Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.CVE-2026-698967.0Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.CVE-2026-698987.8Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-69903.5A vulnerability was found in projeto-siga siga 11.0.3.18. The affected element is an unknown function of the file /sigawf/app/responsavel/noCVE-2026-699007.8Untrusted pointer dereference in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.CVE-2026-699017.5Origin validation error in Microsoft Teams for Android allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-69883: Critical severity, CVSS 9.8 | Vulnix