CVE-2026-45253 — Missing validation in ptrace(PT_SC_REMOTE)

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
FreeBSD / FreeBSD	affected 15.0-RELEASE before p9; affected 14.4-RELEASE before p5; affected 14.3-RELEASE before p14

CWE

CWE-787

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:21.ptrace.asc

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.