CVE-2026-50503Patch(microsoft / windows_11_24h2)

LOWCVSS 7.0 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft windows_11_24h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

microsoft CVEs Back to dashboard

1.0/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50503

Weakness type (CWE)

CWE-362

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_11_24h2
windows_11_25h2
windows_11_26h1
windows_server_2025

Threat summary

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

What's happening

Patch or workaround mentioned in 1 signal
1 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2025

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://windowsforum.com/threads/cve-2026-50503-install-kb5101650-to-fix-windows-privilege-escalation.438588/?utm_source=x&utm_medium=social&utm_campaign=news_node84

Full discourse1 post

Windows Forum@windowsforum98d
Patch
🪟 KB5101650 fixes a Windows flaw that turns “limited local access” into “congratulations, you own the PC.” Patch Windows 11 and Server 2025 before a low-privilege account gets promoted to admin. https://windowsforum.com/threads/cve-2026-50503-install-kb5101650-to-fix-windows-privilege-escalation.438588/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsServer2025 #PrivilegeEscalation #Windows11Security https://t.co/jtxvrloxSd
Post summary
The tweet warns of a privilege escalation vulnerability (CVE‑2026‑50503) and urges users to apply KB5101650 to patch Windows 11 and Server 2025.
00000102
1.2K followersView on X

CPE platform detail7 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

7 of 7 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	microsoft	windows_11_24h2	-	-	arm64
OS	microsoft	windows_11_24h2	-	-	x64
OS	microsoft	windows_11_25h2	-	-	arm64
OS	microsoft	windows_11_25h2	-	-	x64
OS	microsoft	windows_11_26h1	-	-	arm64
OS	microsoft	windows_11_26h1	-	-	x64
OS	microsoft	windows_server_2025	-	-	-

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