VulnSocial

CVE-2026-21234Disclosure(microsoft / windows_10_1809)

LOWCVSS 7.0 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-362

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

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_23h2

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-02-10); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
windows_10_1809windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2windows_11_25h2windows_server_2019windows_server_2022windows_server_2022_23h2windows_server_2025

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-02-10: 1Mentions · 2026-02-11: 1Technical Details · 2026-02-10: 102-1002-11
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-02-101
Disclosure1
2026-02-111
General1
Full discourse2 posts
  • RedPacket Security@RedPacketSec
    General

    CVE Alert: CVE-2026-21234 - Microsoft - Windows 11 version 26H1 - https://www.redpacketsecurity.com/cve-alert-cve-2026-21234-microsoft-windows-11-version-26h1/ #OSINT #ThreatIntel #CyberSecurity #cve-2026-21234 #microsoft #windows-11-version-26h1

    Post summary

    The tweet merely advertises a CVE alert with a link, offering no technical, exploit, or patch details.

    0000089
    3.5K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-21234 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacke… https://www.cve.org/CVERecord?id=CVE-2026-21234

    Post summary

    The post announces a newly disclosed race condition (CVE‑2026‑21234) in the Windows Connected Devices Platform Service that could be leveraged by authorized attackers.

    00000213
    56.5K followersView on X
CPE platform detail18 entries

18 of 18 entries

PartVendorProductVersionTarget SWTarget HW
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_23h2--arm64
OSmicrosoftwindows_11_23h2--x64
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2022_23h2---
OSmicrosoftwindows_server_2025---

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