CVE-2026-58093

Katalog CVE

CVSS 7.0 · High EPSS 0,10%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada freebsd. Skor CVSS 3.1 7.0 (High) menurut CISA ADP.

Deskripsi (NVD)

The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An unprivileged local user can exploit this race condition to escalate privileges.

Rincian

Terbit di NVD

26 Agustus 2026

Terakhir diubah

24 September 2026

Status NVD

Analyzed

CVSS 3.1

7.0 (High), sumber CISA ADP
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416: Use After Free

EPSS (30 hari)

0,10% peluang dieksploitasi; lebih tinggi dari 0,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.freebsd.org/advisories/FreeBSD-SA-26:62.tty.asc advisory vendor