CVE-2026-50342Patch(microsoft / windows_11_24h2)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_11_24h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Improper access control in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_11_24h2
  • windows_11_25h2
  • windows_11_26h1

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-15); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
windows_11_24h2windows_11_25h2windows_11_26h1

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-15: 1Mentions · 2026-09-21: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 1Technical Details · 2026-09-21: 107-1509-21
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets1 URL
Classification over time
DateTotalLabels
2026-07-151
Patch1
2026-09-211
Disclosure1
Full discourse2 posts
  • kaijieguigui@kaijieguigui
    Disclosure

    Just noticed this in the replay — our Windows 11 MIDI work made the @PwnieAwards 2026 Best Privilege Escalation Bug nominee list 🦄 CVE-2026-50342 + CVE-2026-66804 We call the pair DeadNote. https://t.co/L1uYkCq1AR

    Post summary

    The tweet references two Windows 11 MIDI privilege escalation CVEs called DeadNote after a Pwnie Awards nomination, but it provides limited vulnerability detail and no PoC, exploit tool, active exploitation, or patch information.

    25039163.8K
    1.1K followersView on X
  • Windows Forum@windowsforum
    Patch

    🎹 Windows MIDI had a privilege-escalation flaw requiring low privileges, no clicks, and apparently one too many backstage passes. Install KB5101650 before attackers turn your PC into their instrument. https://windowsforum.com/threads/cve-2026-50342-kb5101650-fixes-windows-11-midi-privilege-escalation.438360/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #Windows11 #SecurityUpdates #PrivilegeEscalation https://t.co/W81fcYnaaH

    Post summary

    The tweet notes a Windows 11 MIDI privilege‑escalation flaw (CVE‑2026‑50342) and urges users to install KB5101650 to prevent possible exploitation. No PoC, exploit, or active use is mentioned.

    0000078
    1.2K followersView on X
CPE platform detail6 entries

6 of 6 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64

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