CVE-2026-45253NVD

Vulnerability Summary

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.

Severity Level

HIGH(8.4)

Published Date

May 21, 2026

Last Modified

Jul 23, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.20%Probability

Root Weakness (CWE)

CWE-787: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 8.4 (HIGH)

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Freebsd Freebsd

Patched Versions

Not provided by NVD for this CVE.

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