Dashboard / CVE-2026-71338

CVE-2026-71338

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 23/100
Published: 2026-09-08 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: High
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Double free in Windows Failover Cluster allows an authorized attacker to elevate privileges locally.

Weakness Classification (1)

Affected Software (13)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9512
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9245
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26349
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26349
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23398
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23398
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9512
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9512
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9245
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9245
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5622
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33438
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33438

References & Advisories (1)

Bug Bounty Relevance

23 / 100
✓ No user interaction

CVSS Score

6.4 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.28%
Raw Score 0.002760
Percentile 20.0%
Date 2026-10-30

Intelligence Sources

mitre ref →

External Links