IP-DB.com
Türkçe English Deutsch Español
Entrar Obtener clave API
9.8Crítica KEV

CVE-2017-12240Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

Cisco IOS and IOS XE Publicada: (hace 9 años)

Explotación conocida — Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

CISA confirmó el 03.03.2022 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 24.03.2022.

Acción requerida: Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-12240

Descripción

The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.

Debilidad (CWE): CWE-20CWE-119

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
cisco ios 12.2 – ≤ 15.6
— Cisco IOS and IOS XE Cisco IOS and IOS XE

Referencias y parches

Coincidencias CPE (NVD) (1)
  • cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* ≥ 12.2 ≤ 15.6

CVE recientes del mismo producto — Cisco IOS / IOS XE / ASA

8.6Alta
CVE-2026-76418 KEV

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability

Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software; Cisco Cisco Secure Firewall Threat Defense (FTD) Software

A vulnerability in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unex…

5.3Media
CVE-2026-76445

Multiple Cisco Products Snort 3 Denial of Service Vulnerability

Cisco Cisco Open Source Snort3; Cisco Cisco Secure Firewall Threat Defense (FTD) Software; Cisco Cisco UTD SNORT IPS Engine Software

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detection engine to unexpectedly restart, resulting in a denial of service (DoS) condition. The vulner…

7.5Alta
CVE-2026-20356

Multiple Cisco Products Snort 3 Software Hardening Release: October 2026

Cisco Cisco Cyber Vision; Cisco Cisco Open Source Snort3; Cisco Cisco Secure Firewall Threat Defense (FTD) Software; Cisco Cisco UTD SNORT IPS Engine Software

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that add…

7.5Alta
CVE-2026-20236

Multiple Cisco Products Snort 3 Software Hardening Release: October 2026

Cisco Cisco Cyber Vision; Cisco Cisco Open Source Snort3; Cisco Cisco Secure Firewall Threat Defense (FTD) Software; Cisco Cisco UTD SNORT IPS Engine Software

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that add…