VulnSocial

CVE-2026-50402Patch(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

Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-126CWE-681

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_1607
  • windows_10_1809
  • windows_10_21h2
  • windows_10_22h2

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_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2012windows_server_2016windows_server_2019

2 versions affected across 12 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-15: 1Mentions · 2026-07-16: 1Patch / Workaround · 2026-07-15: 1Technical Details · 2026-07-15: 1Technical Details · 2026-07-16: 107-1507-16
Signal classification2 categories
Patch
150.0%
Disclosure
150.0%
Referenced assets1 URL
Classification over time
DateTotalLabels
2026-07-151
Patch1
2026-07-161
Disclosure1
Full discourse2 posts
  • Bruno Botelho@brunoapbotelho
    Disclosure

    CVE-2026-50402 - another bug on NTFS EA query routines. Out of bounds read reachable from untrusted contexts. https://t.co/Iu7j4Qgxnb

    Post summary

    The tweet briefly discloses CVE-2026-50402, noting an out-of-bounds read in NTFS EA query routines that is accessible from untrusted contexts, without providing further detail, a PoC, or evidence of exploitation.

    28078405.3K
    221 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 NTFS had a privilege ladder with no guardrail. CVE-2026-50402 needs local access, but that’s plenty after one foothold—patch Windows before attackers turn “user” into “owner.” https://windowsforum.com/threads/cve-2026-50402-patch-windows-ntfs-privilege-escalation.438507/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PrivilegeEscalation #NtfsVulnerability #PatchTuesday https://t.co/890D1j8sGn

    Post summary

    The tweet alerts users to a local privilege escalation flaw in NTFS (CVE‑2026‑50402) and urges them to apply Windows patches to mitigate the risk.

    0000044
    1.2K followersView on X
CPE platform detail22 entries

22 of 22 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_10_21h2--arm64
OSmicrosoftwindows_10_21h2--x64
OSmicrosoftwindows_10_21h2--x86
OSmicrosoftwindows_10_22h2--arm64
OSmicrosoftwindows_10_22h2--x64
OSmicrosoftwindows_10_22h2--x86
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

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