CVE-2026-54127General(microsoft / windows_11_24h2)

LOWCVSS 8.4 · 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

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

microsoft CVEs Back to dashboard

0.5/ 10 priority

Sources & remediation

Patch / fix

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54127

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_11_24h2
windows_11_25h2
windows_11_26h1
windows_server_2022

Threat summary

1 mentions across 1 observed day

What's happening

General: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2022windows_server_2025

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

General

1100.0%

Referenced assets1 URL

By indicator

https://windowsforum.com/threads/cve-2026-54127-inventory-hyper-v-now-await-microsoft-fix.438276/?utm_source=x&utm_medium=social&utm_campaign=news_node84

Full discourse1 post

Windows Forum@windowsforum91d
General
🪟 CVE-2026-54127 is a Hyper-V warning with more blanks than answers. Inventory your hosts and workloads now—because “wait for Microsoft” is not a remediation plan, just the current status. https://windowsforum.com/threads/cve-2026-54127-inventory-hyper-v-now-await-microsoft-fix.438276/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #VulnerabilityManagement #SecurityResponse #Cve202654127 https://t.co/TzOMtDrzYk
Post summary
The post highlights the existence of CVE‑2026‑54127 as a Hyper‑V issue, urging inventory of hosts without offering patches, exploits, or detailed technical info.
0000048
1.2K followersView on X

CPE platform detail8 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

8 of 8 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_2022	-	-	-
OS	microsoft	windows_server_2025	-	-	-

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