IP-DB.com
Türkçe English Deutsch Español
Entrar Obtener clave API
7.5Alta KEV

CVE-2017-12231Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability

Cisco IOS Publicada: (hace 9 años)

Explotación conocida — Cisco IOS Software Network Address Translation Denial-of-Service 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-2017-12231

Descripción

A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper translation of H.323 messages that use the Registration, Admission, and Status (RAS) protocol and are sent to an affected device via IPv4 packets. An attacker could exploit this vulnerability by sending a crafted H.323 RAS packet through an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to use an application layer gateway with NAT (NAT ALG) for H.323 RAS messages. By default, a NAT ALG is enabled for H.323 RAS messages. Cisco Bug IDs: CSCvc57217.

Debilidad (CWE): CWE-399

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 12.4 – ≤ 15.6
— Cisco IOS Cisco IOS

Referencias y parches

Coincidencias CPE (NVD) (1)
  • cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* ≥ 12.4 ≤ 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…