CVE-2019-12648

HIGH

Cisco IOS - Authenticated Unauthorized Access to Guest OS via Incorrect RBAC Evaluation

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0235
EPSS Percentile 81.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-284 CWE-863
Status published
Products (1)
cisco/ios 15.7\(3\)m3
Published Sep 25, 2019
Tracked Since Feb 18, 2026