CVE-2026-83723

MediumCVSS 5.5/10Last modified Oct 29, 2026

Description

Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-908

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 29, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-837247.0Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.CVE-2026-837258.8Heap-based buffer overflow in Microsoft Windows Search Component allows an unauthorized attacker to execute code over a network.CVE-2026-837267.8Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.CVE-2026-837277.8Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.CVE-2026-837288.8Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.CVE-2026-837327.8Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.CVE-2026-837335.5Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.CVE-2026-837357.8Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-837365.5Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-837375.5Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.CVE-2026-837387.0Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.CVE-2026-837397.5Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.
CVE-2026-83723: Medium severity, CVSS 5.5 | Vulnix