Skip to main content

Actively exploited

Listed in CISA’s Known Exploited Vulnerabilities catalog since October 14, 2025.

CVE-2025-59230

Microsoft Windows Improper Access Control Vulnerability

Microsoft · Windows

Added to KEV October 14, 2025

Alert details

Source feed
CISA KEV
CVE ID
CVE-2025-59230
CWE
CWE-284
Affected products
Windows · Microsoft Windows · Microsoft

What happened

Microsoft Windows contains an improper access control vulnerability in Windows Remote Access Connection Manager which could allow an authorized attacker to elevate privileges locally.

What it means for your business

Microsoft Windows is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-59230). Microsoft Windows contains an improper access control vulnerability in Windows Remote Access Connection Manager which could allow an authorized attacker to elevate privileges locally. CISA remediation due date: 2025-11-04. If you need help checking exposure, call (864) 335-9223.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: November 4, 2025

Sources

Related briefs

Microsoft MSRC

CVE-2026-70338

Microsoft PowerShell Security Feature Bypass vulnerability

Microsoft PowerShell Security Feature Bypass vulnerability (CVE-2026-70338) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.

Microsoft MSRC

CVE-2026-66804

Microsoft Windows Cross Device Service Elevation of Privilege vulnerability

Microsoft Windows Cross Device Service Elevation of Privilege vulnerability (CVE-2026-66804) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.

Microsoft MSRC

CVE-2026-65791

Windows iSCSI Target Service Remote Code Execution vulnerability

Windows iSCSI Target Service Remote Code Execution vulnerability (CVE-2026-65791) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.

Microsoft MSRC

CVE-2026-56642

Microsoft Fabric Data Warehouse Remote Code Execution vulnerability

Microsoft Fabric Data Warehouse Remote Code Execution vulnerability (CVE-2026-56642) was added to Microsoft’s security update guidance. Updated the Security Updates table by removing an affected software entry. No user action is required. This is an informational change only. If you need help checking exposure, call (864) 335-9223.

Need help patching?

PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.