What’s Vulnerable › Vulnerabilities

CVE-2026-32216: Windows Redirected Drive Buffering System Denial of Service Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-14 · updated 2026-10-26
• Weakness: CWE-476

Description

Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.

Affected products

• Microsoft Windows 11 version 26H1: before 10.0.28000.1836 — fixed in 10.0.28000.1836
• Microsoft Windows 11 version 26H1: from 10.0.28000.0 before 10.0.28000.1836 — fixed in 10.0.28000.1836

How to fix

Upgrade to a fixed version: Microsoft Windows 11 version 26H1 10.0.28000.1836; Microsoft Windows 11 version 26H1 10.0.28000.1836. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32216

Get alerted when CVE-2026-32216 or the next vulnerability affects your stack