CVE-2016-6393

HIGH

Cisco IOS 12.0-12.4 and 15.0-15.6 and IOS XE 2.1-3.18 and 16.2 - Denial of Service via Failed SSH Connection

Title source: llm

Description

The AAA service in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.1 through 3.18 and 16.2 allows remote attackers to cause a denial of service (device reload) via a failed SSH connection attempt that is mishandled during generation of an error-log message, aka Bug ID CSCuy87667.

References (4)

Core 4

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/93196

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1036914

Vendor Advisory vendor-advisory x_refsource_cisco

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-aaados

Third Party Advisory, US Government Resource x_refsource_misc

https://ics-cert.us-cert.gov/advisories/ICSA-16-287-04

Scores

CVSS v3 7.5

EPSS 0.0460

EPSS Percentile 90.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-399

Status published

Products (3)

cisco/ios 12.0 - 12.4

cisco/ios_xe 16.2

cisco/ios_xe 2.1.0 - 3.18.0

Published Oct 05, 2016

Tracked Since Feb 18, 2026