Cisco IOS Software Network Address Translation Vulnerabilities (cisco-sa-20120926-nat)

high Nessus Plugin ID 62375
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote device is missing a vendor-supplied security patch.


The Cisco IOS Software Network Address Translation (NAT) feature contains two denial of service (DoS) vulnerabilities in the translation of IP packets. The vulnerabilities are caused when packets in transit on the vulnerable device require translation. Cisco has released free software updates that address these vulnerabilities.


Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20120926-nat.

See Also

Plugin Details

Severity: High

ID: 62375

File Name: cisco-sa-20120926-nat.nasl

Version: 1.13

Type: local

Family: CISCO

Published: 9/28/2012

Updated: 11/15/2018

Dependencies: cisco_ios_version.nasl

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2012

Vulnerability Publication Date: 9/26/2012

Reference Information

CVE: CVE-2012-4618, CVE-2012-4619

BID: 55693, 55705