CVE-2026-45253
Last modified
CVE-2026-45253 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. 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.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 14.3 |
| Freebsd | Freebsd | 14.4 |
| Freebsd | Freebsd | 15.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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