A vulnerability has been found in Microsoft Windows and classified as critical. This affects an unknown function of the component Ancillary Function Driver for WinSock. This manipulation causes improper access controls.
This vulnerability is tracked as CVE-2026-25176. The attack is restricted to local execution. No exploit exists.
It is suggested to install a patch to address this issue.
Intelligence View
⚡ tsecurity.de Intelligence
CVE-2026-25176 | Microsoft Windows up to Server 2025 Ancillary Function Driver for WinSock access control (WID-SEC-2026-0661)
A vulnerability has been found in Microsoft Windows and classified as critical. This affects an unknown function of the component Ancillary Function Driver for WinSock. This manipulation causes improper access controls. This vulnerability…
Reagiere als Erste:r — dein Feedback zählt!
IoC Intelligence (1 Indikatoren)
CVE-2026-25176
CTI Threat Relationship Graph2 Knoten / 1 Relationen
IR-PLAYBOOK-VULN-REMEDIATION
MEDIUMSOC Incident Playbook: Vulnerability Remediation & Verification
1-Click Detection Engineering: Sigma & YARA Rules
SOC Readytitle: Detect Exploitation - CVE-2026-25176 | Microsoft Windows up to Server 2025 Ancillary Function Driver for WinSock access control (WID-SEC-2026-0661)
id: 16570716-e13d-4d16-9116-c816b2ff4477
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessrule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "CVE-2026-25176 | Microsoft Win" ascii wide
condition:
any of them
}Infrastructure Blast Radius & Exposure
LOCALIZEDPerimeter & External Ingress
GEFÄHRDET (85%)
Lateral Movement & Pivot
Geringes Risiko
Data Stores & Crown Jewels
Geringes Risiko
Supply Chain & Cascading Reach
Geringes Risiko
SOCIAL SHARE CARD GENERATOR