CVE-2026-25170Disclosure(microsoft / windows_11_23h2)

LOWCVSS 7.0 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft windows_11_23h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

microsoft CVEs Back to dashboard

1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25170

Weakness type (CWE)

CWE-416

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_11_23h2
windows_11_24h2
windows_11_25h2
windows_11_26h1

Threat summary

Patch or workaround signal is available
3 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 3 signals
Disclosure: 2 classified signals
Peaked 1d ago at 2 mentions (2026-03-13); latest day: 1
3 total mentions across 2 days

Affected systems

Vendors

microsoft

Products

windows_11_23h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2022windows_server_2022_23h2windows_server_2025

Deep dive

Activity timeline3 mentions / 2d

Signal classification2 categories

Disclosure

266.7%

Patch

133.3%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-13	2	Disclosure1Patch1
2026-03-17	1	Disclosure1

Full discourse3 posts

CVE@CVEnew206d
Disclosure
CVE-2026-25170 Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally. https://www.cve.org/CVERecord?id=CVE-2026-25170
Post summary
CVE-2026-25170 is a use‑after‑free vulnerability in Windows Hyper‑V that permits a local attacker with authorized access to elevate privileges.
01011180
56.7K followersView on X
Aakash Rahsi@rahsi_aaka209d
Disclosure
CVE-2026-25170 | Windows Hyper-V Elevation of Privilege Vulnerability https://www.aakashrahsi.online/post/cve-2026-25170 https://t.co/4DNy3E0jtG
Post summary
A new CVE-2026-25170 has been disclosed as a Windows Hyper‑V privilege‑escalation vulnerability, but no PoC, exploit, patch, or active exploitation details are provided.
0000034
2 followersView on X
Doctor Kloud@doctorkloud210d
Patch
Use after free dans Hyper-V : un attaquant local autorisé passe admin sans bruit. Élévation de privilèges pure, pas de réseau requis. Patch maintenant sur tous les hôtes de virtualisation. #CVE-2026-25170 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25170
Post summary
The post announces that Microsoft has issued a patch for CVE‑2026‑25170, a use‑after‑free flaw in Hyper‑V that allows a local attacker to gain administrative privileges without network access.
0000045
13 followersView on X

CPE platform detail11 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

11 of 11 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	microsoft	windows_11_23h2	-	-	arm64
OS	microsoft	windows_11_23h2	-	-	x64
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_2022_23h2	-	-	-
OS	microsoft	windows_server_2025	-	-	x64

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