vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2019-12669

Cisco IOS and IOS XE Software Change of Authorization Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: September 25, 2019 at 08:15 PM UTC
Updated: June 17, 2026 at 02:15 AM UTC
5 products affected across 1 vendorIOSCatalyst 3560Catalyst 3560-e

Using Cisco IOS XE Software 3.2.9SG by Cisco?

Get instant alerts when new vulnerabilities affect Cisco IOS XE Software 3.2.9SG - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the RADIUS Change of Authorization (CoA) code of Cisco TrustSec, a feature within Cisco IOS XE Software, could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of a malformed packet. An attacker could exploit this vulnerability by sending a malformed packet to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

Affected

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

IOS· Cisconpm
95%
15.2(3)e15.2(3)e516.11.1
cisco-catalyst-3560 (environment) · cisco-catalyst-3560-e (environment) · cisco-catalyst-3560-x (environment)
IOS Xe· Cisco
60%
All versions
Catalyst 3560· Ciscodevice
80%
All versions
Catalyst 3560-e· Ciscodevice
80%
All versions
Catalyst 3560-x· Ciscodevice
80%
All versions

Remediation

No guide yet

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

Patch and advisory references

References (1)

Vendor Advisoryx_refsource_CISCO
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-tsec

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card