CVE-2026-62688Patch(microsoft / windows_11_24h2)

MEDIUMCVSS 7.8 · HIGH

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Patch microsoft windows_11_24h2 systems immediately
  • Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

NVD description

Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

4.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-122

Priority

MEDIUM

Exploitation

ACTIVE

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

  • Active exploitation appears in 1 classified signals
  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Active exploitation reported across 1 signal
  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Peaked 1d ago at 1 mentions (2026-08-11); 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 · 2026-08-11: 1Mentions · 2026-08-21: 1Active Exploitation · 2026-08-21: 1Patch / Workaround · 2026-08-11: 1Patch / Workaround · 2026-08-21: 1Technical Details · 2026-08-11: 1Technical Details · 2026-08-21: 108-1108-21
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • Alex Plaskett@alexjplaskett
    Patch

    An LPE in Windows 11 an agent found and exploited for me end-to-end got patched in the August updates 🤖 https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-62688

    Post summary

    An LPE (CVE-2026-62688) in Windows 11 was discovered and exploited by the author’s agent, but Microsoft addressed it with a patch released in the August update.

    17060234.2K
    13.9K followersView on X
  • Windows Forum@windowsforum
    Patch

    🎹 Windows 11’s MIDI service can turn a low-privilege foothold into full system control. Not exactly music to admins’ ears—patch CVE-2026-62688 before the hacker encore. https://windowsforum.com/security-alerts.84/cve-2026-62688-patch-windows-11-midi-privilege-escalation.442572/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #Windows11 #PatchTuesday #Cve202662688 #MidiService https://t.co/bxYRyBtp5E

    Post summary

    The announcement warns that CVE‑2026‑62688 enables privilege escalation through Windows 11’s MIDI service and urges users to apply the available patch.

    0000049
    1.3K 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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