CVE-2026-49421

Katalog CVE

CVSS 7.1 · High EPSS 0,13%

Kerentanan Improper Check for Dropped Privileges pada freebsd. Skor CVSS 3.1 7.1 (High) menurut CISA ADP.

Deskripsi (NVD)

The kernel function that implements unlinkat(2) and funlinkat(2) validated the AT_RESOLVE_BENEATH flag but failed to pass it through to the underlying path lookup. The flag was silently dropped, so path resolution was not actually restricted. A process that uses AT_RESOLVE_BENEATH with unlinkat(2) or funlinkat(2) to confine path resolution can in fact resolve paths above the starting directory. A caller relying on this flag for path containment may delete files outside the intended directory tree.

Rincian

Terbit di NVD

19 Agustus 2026

Terakhir diubah

1 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-273: Improper Check for Dropped Privileges

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.freebsd.org/advisories/FreeBSD-SA-26:42.unlinkat.asc advisory vendor