CVE-2026-42511

Katalog CVE

CVSS 8.1 · High EPSS 0,40%

Kerentanan Improper Neutralization of Quoting Syntax pada freebsd. Skor CVSS 3.1 8.1 (High) menurut CISA ADP.

Deskripsi (NVD)

The BOOTP file field is written to the lease file without escaping embedded double-quotes, allowing injection of arbitrary dhclient.conf directives. When the lease file is subsequently re-parsed by dhclient, e.g., after a system restart, an attacker-controlled field from the lease is passed to dhclient-script(8), which evaluates it. A rogue DHCP server may be able to execute arbirary code as root on a system running dhclient.

Rincian

Terbit di NVD

30 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-149: Improper Neutralization of Quoting Syntax

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.freebsd.org/advisories/FreeBSD-SA-26:12.dhclient.asc advisory vendor