VulnSocial

CVE-2026-56643Patch(microsoft / windows_10_1607)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_1607 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

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

  • windows_10_1607
  • windows_10_1809
  • windows_10_21h2
  • windows_10_22h2

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2016windows_server_2019windows_server_2022

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-15: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 107-15
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 DirectX wasn’t just drawing pretty pixels: CVE-2026-56643 could hand a local attacker the Windows kernel keys. July’s cumulative update patches it—Patch Tuesday remains the least exciting security hero. https://windowsforum.com/threads/cve-2026-56643-july-updates-fix-windows-directx-kernel-flaw.438798/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #DirectxKernel #PatchTuesday https://t.co/cLl0sMWmdM

    Post summary

    The tweet notes that DirectX CVE-2026-56643 can grant local attackers kernel keys and that the July cumulative update will remediate the issue, with no evidence of existing exploitation or PoC.

    0000053
    1.2K followersView on X
CPE platform detail11 entries

11 of 11 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607---
OSmicrosoftwindows_10_1809---
OSmicrosoftwindows_10_21h2---
OSmicrosoftwindows_10_22h2---
OSmicrosoftwindows_11_24h2---
OSmicrosoftwindows_11_25h2---
OSmicrosoftwindows_11_26h1---
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

Explore more

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