CVE-2026-50307
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
A use-after-free vulnerability exists in the Windows TCP/IP stack. This allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker can exploit this flaw to gain elevated privileges, potentially compromising system integrity and confidentiality.
Recommendation
Install the relevant Windows security updates.
Other vulnerabilities in Windows TCP/IP
See all- 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.
- CVE-2026-62792High
Stack-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- CVE-2026-59132High
A vulnerability in Windows TCP/IP involves a null pointer dereference, allowing an unauthorized attacker to cause a denial of service (DoS) over a network.
Original NVD description (English source)
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.