freebsd-dhclient-poc

CVE-2020-7461 PoC de reproducción Autores: Moshe Kol, Shlomi Oberman PoC de reproducción de la vulnerabilidad de desbordamiento de búfer del heap en dhclient de FreeBSD al analizar la opción 119 de DHCP CVE-2020-7461. El problema reside en la función findsearchdomainnamelen del archivo...

dhcpoptinj

Inyector de opciones DHCP ¿Alguna vez has querido interceptar peticiones DHCP e insertar algunas opciones DHCP adicionales, sin que el remitente lo sepa? Probablemente no. Sin embargo, si alguna vez surge la necesidad, dhcpoptinj con suerte te ayudará. Por qué Puede haber muchas razones para...

CVE-2026-11834

CVE-2026-11834 PoC TP-Link DHCP Option 66 Unauthenticated RCE CVE-2026-11834 Overview A command injection vulnerability CWE-78 in the DHCP Option 66 "TFTP Server Name" handling of TP-Link router firmware allows an unauthenticated attacker on the same network segment to execute arbitrary commands ...

CVE-2026-9997-VPN-Split-Tunneling-Bypass-via-DHCP-Option-Injection

CVE-2026-9997 – VPN Split‑Tunneling Bypass via DHCP Option Injection Program Code Python simulated DHCP server + client root@kitploit: !/usr/bin/env python3 roguedhcpserver.py - Injects a static route to bypass VPN split tunnel import socket, struct, threading def senddhcpofferclientmac, offerip:...

SUSE-SU-2026:2720-1 Security update for dracut

This update for dracut fixes the following issue - CVE-2026-6893: Root code execution via DHCP options command injection bsc1268322. Changes for dracut: - Update to version 055+suse.365.g79144c5: fixnetwork-legacy: sanitize DHCP values in dhclient-script.sh bsc1268322, CVE-2026-6893...

CVE-2026-11834

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

CVE-2026-11834 Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

EUVD-2026-38339

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

CVE-2025-70102

A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options. In parseoption src/if-options.c:1886, the code performs a member access on a NULL pointer of type 'struct dhcpopt' when an unexpected/invalid option token or parsing state caus...

CVE-2025-70102

A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options. In parseoption src/if-options.c:1886, the code performs a member access on a NULL pointer of type 'struct dhcpopt' when an unexpected/invalid option token or parsing state caus...

CVE-2026-45160 ESF-IDF: Out-of-bounds Read in lwIP DHCP Server Option Parser

ESF-IDF is the Espressif Internet of Things IOT Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser parseoptions in components/lwip/apps/dhcpserver/dhcpserver.c shipped with ESP-IDF's lwIP component. The pars...

ESP-IDF 缓冲区错误漏洞

ESP-IDF is an open-source development framework for Espressif’s SoCs, supported on Windows, Linux, and macOS. Versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1 of ESP-IDF contain buffer overflow vulnerabilities. These vulnerabilities stem from an out-of-bounds read issue in the DHCP server option...

CVE-2026-34960 barebox Out-of-Bounds Read in DHCP Option Parsing

barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcpmessagetype function that fails to verify the options pointer remains within received packet bounds. An attacker on the same broadcast domain can send a crafted DHCP Offer or ACK...

CVE-2026-34960 barebox Out-of-Bounds Read in DHCP Option Parsing

barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcpmessagetype function that fails to verify the options pointer remains within received packet bounds. An attacker on the same broadcast domain can send a crafted DHCP Offer or ACK...

CLSA-2026-1776960429 busybox: Fix of 4 CVEs

CVE-2018-1000517: fix heap buffer overflow in wget chunked decoding - CVE-2017-16544: reject terminal control sequences in shell tab completion - CVE-2018-20679: reject zero-length DHCP options and validate 4-byte option lengths - CVE-2019-5747: validate DHCPSUBNET option length before decoding...

busybox: Fix of 4 CVEs

CVE-2018-1000517: fix heap buffer overflow in wget chunked decoding - CVE-2017-16544: reject terminal control sequences in shell tab completion - CVE-2018-20679: reject zero-length DHCP options and validate 4-byte option lengths - CVE-2019-5747: validate DHCPSUBNET option length before decoding...

CVE-2025-59960

CVE-2025-59960 affects Juniper Networks Junos OS and Junos OS Evolved. The vulnerability arises in the DHCP service (jdhcpd) where the default DHCP relay behavior allows Option 82 information from a client in one subnet to reach the DHCP server unmodified, enabling a DHCP client to exhaust addres...

CVE-2020-7461

In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r365011, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, dhclient8 fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle ...

CLSA-2025-1764322970 NetworkManager: Fix of CVE-2024-3661

CVE-2024-3661: fix TunnelVision vulnerability by preventing DHCP option 121 route manipulation that could bypass VPN encryption and leak traffic...

CVE-2025-12200

Rejected reason: REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: Based on the analysis by MITRE and review of community feedback, the reported conditions represent...