By severity

High-severity vulnerabilities

CVEs rated High by CVSS, with SEC.co remediation and prioritization guidance.

1002 published vulnerabilities · page 11 of 11

• CVE-2026-46154HIGH 7.0

  A race condition exists in the Linux kernel's scheduler extension (sched_ext) cgroup interface that can lead to use-after-free memory access. When system administrators adjust cgroup scheduling parameters like weight, idle status, or bandwidth, the kernel reads a pointer to the scheduler without proper synchronization. If another process simultaneously disables and re-enables a different scheduler, the cached pointer becomes stale and points to freed memory. When the original operation tries to use this pointer, it dereferences already-freed kernel memory, potentially allowing local privilege escalation.

• CVE-2026-46164HIGH 7.0

  A memory management bug in the Linux kernel's Btrfs filesystem can cause the same memory region to be freed twice when a sysfs initialization step fails. This double-free condition can lead to memory corruption and potentially allow an attacker with local access to crash the system or execute code with elevated privileges. The issue occurs in error handling code that wasn't properly coordinated between two layers of the filesystem's initialization logic.