CVE-2026-45253

HIGH EPSS 9.5%
Published May 21, 20261mo ago · Modified Jun 17, 20261w ago
8.4 CVSS 3.1
High
Find Similar
Published May 21, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.4
Exploitability
2.5
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
9.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 29

VendorProductVersionRange
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.3any
freebsdfreebsd14.4any
freebsdfreebsd14.4any
freebsdfreebsd14.4any
freebsdfreebsd14.4any
freebsdfreebsd14.4any
freebsdfreebsd14.4any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any
freebsdfreebsd15.0any

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.