CVE-2026-42511

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

8.1 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-30/7/2026

CWE

CWE-149

מוצרים מושפעים

freebsd: freebsd

קישורים

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