CVE-2026-50306

HighCVSS 7.8

Published: 14/07/2026(UTC)Updated: 22/07/2026(UTC)Translated: 23/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.24%

15th percentile - higher than 15% of all known CVEs

Summary

Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

Risk Assessment

An attacker could exploit the flaw to escalate privileges, potentially leading to control over network functions.

Recommendation

Apply security patches for Windows TCP/IP stack from Microsoft.

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-2026-40415High
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.

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