CVE-2016-6393

HIGH
7.5
CVSS Score
Published: October 5, 2016 at 08:00 PM UTC
Updated: June 17, 2026 at 12:50 AM UTC
2 products affected across 1 vendorIOSIOS Xe

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Severity
HIGH7.5
Exploit prediction
EPSS 5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

12.0 ≤ v ≤ 12.415.0 ≤ v ≤ 15.6
2.1.0 ≤ v ≤ 3.18.016.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/93196
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1036914
x_refsource_MISCThird Party AdvisoryUS Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-16-287-04

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-399

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