CVE-2026-42511

Published: Apr 30, 2026 Last Modified: Mag 01, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,1
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,1th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

149

Improper Neutralization of Quoting Syntax

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Unexpected State
Applicable Platforms
All platforms may be affected
View CWE Details
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.4
cpe:2.3:o:freebsd:freebsd:14.4:rc1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p5:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.4
cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p4:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p3:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:beta3:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p10:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p9:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p7:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p10:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p6:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p4:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.4
cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p7:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p5:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p8:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p11:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p6:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p11:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p3:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.4
cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p8:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 15.0
cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 13.5
cpe:2.3:o:freebsd:freebsd:13.5:p12:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Freebsd by Freebsd

Product Information
Vendor Freebsd
Product Freebsd
Version 14.3
cpe:2.3:o:freebsd:freebsd:14.3:p9:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://security.freebsd.org/advisories/FreeBSD-SA-26:12.dh…
https://security.freebsd.org/advisories/FreeBSD-SA-26:12.dhclient.asc