CVE-2026-83874

HighCVSS 8.8/10Last modified Oct 21, 2026

Description

Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 21, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-838755.5Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.CVE-2026-838767.8Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.CVE-2026-838777.8Integer overflow or wraparound in HID Parser Library allows an authorized attacker to elevate privileges locally.CVE-2026-838797.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Overlay Filter allows an authorized aCVE-2026-83886.5Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, CVE-2026-838817.8Heap-based buffer overflow in Windows exFAT File System allows an authorized attacker to elevate privileges locally.CVE-2026-838827.8Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-838837.8Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.CVE-2026-838845.5Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.CVE-2026-838855.6Inadequate encryption strength in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locaCVE-2026-838867.0Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.CVE-2026-838875.5Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.
CVE-2026-83874: High severity, CVSS 8.8 | Vulnix