CVE-2026-85834
HighCVSS 7.0Summary
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Risk Assessment
This flaw enables an attacker with valid credentials to escalate privileges, potentially leading to unauthorized system access.
Recommendation
It is recommended to urgently apply security patches for the Windows TCP/IP stack.
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-2026-85368High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-83872High
Incorrect conversion between numeric types 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)
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS