cve-2026-23313

CVE-2026-23313 is a Linux kernel vulnerability affecting Intel's 700-series Ethernet driver (i40e), specifically a preempt count leak in the NAPI poll tracepoint. This bug can disrupt kernel preemption accounting, potentially leading to system instability in networking stacks. Microsoft's Security Update Guide identifies and documents this issue, providing machine-readable vulnerability data for faster remediation. The fix is particularly relevant for enterprise and virtualized environments relying on Intel i40e-based networking. Discussions on WindowsForum cover the technical details of the kernel patch, its impact on reliability, and how Microsoft's update ecosystem surfaces CVEs from industry partners.