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8.1 — CRITICAL

FreeBSD DHCP Client Vulnerability Enables Remote Code Execution as Root

📅 4 May 2026 at 06:25 UTC📰 Cyber Security NewsView original source ↗
FreeBSD DHCP Client Vulnerability Enables Remote Code Execution as Root

The FreeBSD Project has released a critical security advisory addressing a severe flaw in its default IPv4 DHCP client. Tracked as CVE-2026-42511, this vulnerability allows a local network attacker to execute arbitrary code as root, granting them complete control over the compromised machine. Discovered by Joshua Rogers of the AISLE Research Team, the vulnerability affects all […] The post FreeBSD DHCP Client Vulnerability Enables Remote Code Execution as Root appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

A severe vulnerability in the FreeBSD DHCP client allows a local network attacker to execute arbitrary code as root, granting complete control over the compromised machine. This vulnerability has been assigned CVE-2026-42511 and is rated HIGH on the CVSS scale.

⚙️Technical Details
CVEs
CVE-2026-42511
Affected Systems
FreeBSD
Attack Vectors
NETWORK
💥Impact Assessment
Severity: CRITICAL
Who Is at Risk
FreeBSD users and administrators
🛡️Recommended Actions
1Immediately update the FreeBSD DHCP client to the latest version.
2Disable the DHCP client until a patch is available.
3Monitor network traffic for suspicious activity related to the DHCP client.
📦Affected Products
Freebsd FreebsdFreeBSD
🔐NVD Verified DataVERIFIED
CVE-2026-42511 ↗CVSS 8.1 — HIGH
Attack Vector
NETWORK
Complexity
HIGH
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-149
Affected Products (CPE)
Freebsd Freebsd

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