CVE-2019-12648

Cisco IOx for IOS Software Guest Operating System Unauthorized Access Vulnerability

HIGH
8.8
CVSS Score
Published: September 25, 2019 at 08:05 PM UTC
Updated: June 17, 2026 at 02:15 AM UTC
6 products affected across 1 vendorIOSCgr 1120829 Industrial Integrated Services Routers

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the IOx application environment for Cisco IOS Software could allow an authenticated, remote attacker to gain unauthorized access to the Guest Operating System (Guest OS) running on an affected device. The vulnerability is due to incorrect role-based access control (RBAC) evaluation when a low-privileged user requests access to a Guest OS that should be restricted to administrative accounts. An attacker could exploit this vulnerability by authenticating to the Guest OS by using the low-privileged-user credentials. An exploit could allow the attacker to gain unauthorized access to the Guest OS as a root user.

Affected

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

cisco-807-industrial-integrated-services-routers (environment) · cisco-809-industrial-integrated-services-routers (environment) · cisco-829-industrial-integrated-services-routers (environment) · cisco-cgr-1120 (environment) · cisco-cgr1240 (environment)
All versions
All versions

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-284CWE-863

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