---
id: CVE-2026-83928
title: >-
  Out-of-bounds write in Windows Local Security Authority Subsystem Service
  (LSASS) allows an unauthorized attacker to execute code over a network.
summary: >-
  Out-of-bounds write in Windows Local Security Authority Subsystem Service
  (LSASS) allows an unauthorized attacker to execute code over a network.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T21:19:06.673'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83928'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83928'
    label: secure@microsoft.com
tags:
  - nvd
ingestedAt: '2026-10-13T19:43:29.143Z'
---

## Overview

Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to execute code over a network.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.