CVE-2026-96852
HighCVSS 7.0Summary
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.
Risk Assessment
An attacker with valid credentials could exploit this flaw to gain higher privileges on the system, potentially leading to full host compromise.
Recommendation
Apply Microsoft security updates for the Windows TCP/IP stack as soon as possible and limit local privileged accounts.
Other vulnerabilities in Windows TCP/IP
See all- 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-2026-40415High
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.
- CVE-2026-40405High
A null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.
- CVE-2026-34351High
A race condition in Windows TCP/IP allows for concurrent execution using shared resources with improper synchronization. This enables an authorized attacker to elevate privileges locally.
- CVE-2026-34334High
A race condition in Windows TCP/IP allows for concurrent execution using shared resources with improper synchronization. This enables an authorized attacker to elevate privileges locally.
- CVE-2026-33837High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-42904Critical
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
- CVE-2021-26424Critical
Remote code execution vulnerability in Windows TCP/IP stack. It could allow an attacker to execute arbitrary code in the context of the kernel.
Original NVD description (English source)
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS