CVE-2026-83872
HighCVSS 7.8Summary
Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access could exploit the conversion error to escalate privileges and take control of the system.
Recommendation
Apply Windows security updates that address this issue.
Other vulnerabilities in Windows TCP/IP
See all- CVE-2026-96852High
A use after free vulnerability in the Windows TCP/IP stack allows an authorized attacker to elevate privileges locally. The issue stems from accessing freed memory within the TCP/IP protocol handling code.
- CVE-2026-85834High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-85368High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-83842High
Double free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-83682High
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-83678High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-70164High
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-69913High
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- CVE-2026-40415High
A use after free vulnerability in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- CVE-2026-40406High
A use after free vulnerability in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.
Original NVD description (English source)
Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS