CVE-2026-56188
CWE-362Published: July 14, 2026· Updated: Jul 14, 2026
Official Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Network driver allows an unauthorized attacker to execute code over a network.
Risk Analysis
This critical race condition vulnerability in the Windows Server Network driver allows an unauthorized attacker to execute code remotely. A CVSS score of 9.8 indicates a severe risk, potentially leading to full system compromise.
No public exploit is currently known for this vulnerability. Its remote exploitability (AV:N) and lack of required privileges (PR:N) make it a high concern for network-based attacks.
Apply the latest security updates for Windows Server to address this vulnerability. Ensure network drivers are regularly updated and implement network segmentation to limit potential attack surfaces.
Technical Analysis
CVE-2026-56188 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-362)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-56188 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts