CVE-2021-26879
HighCVSS 7.5Exploitation Probability (EPSS)
High risk88th percentile - higher than 88% of all known CVEs
Summary
Denial of service vulnerability in Windows Network Address Translation (NAT). An attacker could exploit this to cause a service failure.
Risk Assessment
Disruption of network services, potentially leading to unavailability of systems to users.
Recommendation
Install the latest Windows security updates.
Other vulnerabilities in Windows NAT
See all- CVE-2026-56179High
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
- CVE-2026-56181High
Origin validation error in Windows Network Address Translation (NAT) allows an unauthenticated attacker to perform spoofing over an adjacent network.
- CVE-2024-38119High
A remote code execution vulnerability in Windows Network Address Translation (NAT) allows an attacker to execute code remotely.
- CVE-2024-21344Medium
A Denial of Service vulnerability in Windows Network Address Translation (NAT) allows an attacker to cause service failure or unavailability. The attack can be performed remotely without authentication.
- CVE-2024-21343Medium
Denial of service vulnerability in Windows Network Address Translation (NAT). An attacker could cause the NAT service to crash, potentially disrupting network connectivity.
Original NVD description (English source)
Windows Network Address Translation (NAT) Denial of Service Vulnerability