CVE-2026-56187

HIGH
MEDIUM Priority: 0.02 BB Relevance: 29/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.8875
microsoft windows_11_24h2 < 10.0.26100.8875
microsoft windows_11_25h2 < 10.0.26200.8875
microsoft windows_11_26h1 < 10.0.28000.2525

References & Advisories (1)

Bug Bounty Relevance

29 / 100
✓ No user interaction

CVSS Score

7.0 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.28%
Raw Score 0.002790
Percentile 20.3%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00279
2026-10-29
0.00279
2026-10-28
0.00279

Intelligence Sources

mitre ref →