SEPTEMBER 26, 2026
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Case File

CVE-2026-42511

HIGH · CVSS 8.1 EPSS 0.43%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-04-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. See the original NVD description below for full technical details.

CVE
CVE-2026-42511
Severity
HIGH
CVSS
8.1
EPSS
0.43%

Original NVD Description

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.

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