CVE-2026-20843
HighCVSS 7.8Exploitation Probability (EPSS)
High risk87th percentile - higher than 87% of all known CVEs
Summary
Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized attacker can elevate their privileges on the system, potentially leading to full system control.
Recommendation
Install the latest Windows security updates from Microsoft.
Other vulnerabilities in Windows Routing and Remote Access Service (RRAS)
See all- CVE-2026-96245High
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
- CVE-2026-85808High
An out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.
- CVE-2026-85339High
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine.
- CVE-2026-85322High
Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
- CVE-2026-70158High
A Remote Code Execution (RCE) vulnerability in Windows Routing and Remote Access Service (RRAS) allows an attacker to gain unauthorized access to the victim's machine. Exploitation can lead to full system compromise.
- CVE-2026-69590Critical
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
- CVE-2023-35367Critical
A vulnerability in the Windows Routing and Remote Access Service (RRAS) allows for remote code execution. An attacker can exploit this flaw to gain control over the system.
- CVE-2023-35366Critical
A vulnerability in the Windows Routing and Remote Access Service (RRAS) allows for remote code execution. An attacker can exploit this flaw to gain control over the system.
- CVE-2023-35365Critical
A vulnerability in the Windows Routing and Remote Access Service (RRAS) allows for remote code execution. An attacker can exploit this flaw to gain control over the system.
- CVE-2026-49791High
Improper link resolution before file access ('link following') in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS