CVE-2026-83798

MediumCVSS 5.5/10Last modified Oct 27, 2026

Description

Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

Metrics

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

Weakness enumeration

CWE-20CWE-347

Affected software

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 27, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-83806.5The Frontend File Manager Plugin WordPress plugin through 23.6 does not properly verify ownership of every targeted post before permanent deCVE-2026-838015.4Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.37 and 3.1.8, a user with extras.add_relationship or extCVE-2026-838037.7Sentry is an error tracking and performance monitoring tool. From 23.11.0 until 26.7.0, Sentry instances with the relocation feature enabledCVE-2026-838056.4Nautobot is a Network Source of Truth and Network Automation Platform. From 3.0.0 until 3.1.8, the generic ApprovalWorkflowStageResponse creCVE-2026-83815.4A broken access control vulnerability exists in the TeamViewer DEX Platform (On‑Premises) prior version 9.2. Certain backend API endpoints dCVE-2026-838133.1Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.names.dns.DNSDatagramProCVE-2026-83825.3The Advanced Custom Fields (ACF®) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.1. ThCVE-2026-838267.8Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally.CVE-2026-838277.0Heap-based buffer overflow in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.CVE-2026-838287.8Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.CVE-2026-838297.8Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-83835.3The LearnPress WordPress plugin before 4.3.7 does not gate the `edit` context on one of its REST endpoint behind the `edit_users` capabilit
CVE-2026-83798: Medium severity, CVSS 5.5 | Vulnix