Actively exploited in the wild
Microsoft Windows Improper Access Control Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2025-10-14. This indicates confirmed attacks in production environments.
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.
CVE-2025-59230
HighCVSS 7.8KEVSummary
Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally. The flaw concerns the access control mechanism within this Windows component.
Risk Assessment
An attacker with valid credentials can locally elevate their privileges, potentially leading to full control of the affected device. This risk is especially relevant on workstations and servers accessed by multiple users.
Recommendation
Immediately install the latest Windows security updates containing the fix for this vulnerability. Additionally, limit the number of accounts allowed to log on locally to critical systems.
Other vulnerabilities in Windows Remote Access Connection Manager
See all- CVE-2026-72966Medium
Missing authorization in Windows Remote Access Connection Manager allows an authorized attacker to perform tampering locally.
- CVE-2026-71352High
Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.
- CVE-2026-71343High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code locally.
- CVE-2026-71342High
Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-71333High
Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-69455High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-69331High
Use-after-free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-62783High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-62758High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-50666High
Windows Remote Access Connection Manager has a use-after-free vulnerability that allows an authorized attacker to elevate privileges over a network.
Original NVD description (English source)
Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.