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CVE-2026-50484Patch(microsoft / windows_10_1809)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_1809 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Heap-based buffer overflow 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-122

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_10_1809
  • windows_10_21h2
  • windows_10_22h2
  • windows_11_24h2

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
microsoft
Products
windows_10_1809windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2019windows_server_2022windows_server_2025

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-15: 1Mentions · 2026-07-21: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 1Technical Details · 2026-07-21: 107-1507-21
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-151
Patch1
2026-07-211
Disclosure1
Full discourse2 posts
  • MalwareObserver@MalwareObserver
    Disclosure

    🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-50484](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50484) Heap-based... https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50484 #Vulnerability #CVE #ZeroDay

    Post summary

    The tweet announces a new CVE-2026-50484 heap-based vulnerability and links to the Microsoft Security Response Center for details, without mentioning PoC, exploit code, or active exploitation.

    0000028
    13 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 Another Windows kernel flaw turns a low-privilege account into a potential VIP pass. July’s patch closes the heap overflow—because “local access” is still access. Patch shared systems first. https://windowsforum.com/threads/cve-2026-50484-july-14-updates-fix-windows-kernel-privilege-escalation.438564/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PrivilegeEscalation #KernelVulnerability https://t.co/lXTK89kFEv

    Post summary

    The tweet highlights the CVE‑2026‑50484 kernel privilege escalation via a heap overflow and urges users to apply the July patch to mitigate the vulnerability.

    0000015
    1.2K followersView on X
CPE platform detail11 entries

11 of 11 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_10_21h2---
OSmicrosoftwindows_10_22h2---
OSmicrosoftwindows_11_24h2---
OSmicrosoftwindows_11_25h2---
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

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