CVE-2021-40463
7.7 HIGHWindows Network Address Translation (NAT) Denial of Service Vulnerability
Published: 2021-10-13 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.7 HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Affected products
| Vendor | Product |
|---|---|
| microsoft | windows_10, windows_11_21h2, windows_8.1 |
Description
Windows Network Address Translation (NAT) Denial of Service Vulnerability
Source: NVD
References
Related CVEs
Same vendor
- CVE-2026-50512 — Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
- CVE-2026-50511 — Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
- CVE-2026-50507 — Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack (6.8 MEDIUM)
- CVE-2026-49161 — Improper access control in Microsoft PC Manager allows an authorized attacker to bypass a security feature locally (7.8 HIGH)
- CVE-2026-49160 — Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network (7.5 HIGH)