VULNERABILITY INTELLIGENCE

CVE-2026-45253

CVSS score8.4 HIGH
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-05-21
Last modified2026-07-23
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

ptrace(PT_SC_REMOTE) failed to properly validate parameters for the syscall(2) and __syscall(2) meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges. The missing validation allows an unprivileged local user to escalate privileges, potentially gaining full control of the affected system.

Weakness classification

  • secteam@freebsd.org: CWE-787

Primary references