CVE-2021-34456
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
A vulnerability in the Windows Remote Access Connection Manager allows elevation of privilege. An attacker could exploit this flaw to gain higher privileges on the system.
Risk Assessment
Risk of unauthorized network access and system takeover.
Recommendation
Install the latest Windows security updates to mitigate this vulnerability.
Other vulnerabilities in Windows Remote Access Connection Manager
See all- CVE-2026-85867High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-21525MediumActively exploited
A null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to cause a denial of service locally.
- CVE-2025-59230HighActively exploited
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.
- 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.
Original NVD description (English source)
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Vulnerability data from NVD (NIST) · CISA KEV · EPSS