CVE-2020-3393

Cisco IOS XE Software IOx Application Hosting Privilege Escalation Vulnerability

HIGH

7.8

CVSS Score

Published: September 24, 2020 at 06:02 PM UTC

Updated: June 17, 2026 at 03:18 AM UTC

128 products affected across 1 vendorIOS XeAsr 1002-xAsr 1006

Using Cisco IOS XE Software by Cisco?

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

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

A vulnerability in the application-hosting subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to root on an affected device. The attacker could execute IOS XE commands outside the application-hosting subsystem Docker container as well as on the underlying Linux operating system. These commands could be run as the root user. The vulnerability is due to a combination of two factors: (a) incomplete input validation of the user payload of CLI commands, and (b) improper role-based access control (RBAC) when commands are issued at the command line within the application-hosting subsystem. An attacker could exploit this vulnerability by using a CLI command with crafted user input. A successful exploit could allow the lower-privileged attacker to execute arbitrary CLI commands with root privileges. The attacker would need valid user credentials to exploit this vulnerability.

Affected

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

IOS Xe · Cisco

95%

16.12.1

cisco-1100-4g-integrated-services-router (environment) · cisco-1100-4gltegb-integrated-services-router (environment) · cisco-1100-4gltena-integrated-services-router (environment) · cisco-1100-4p-integrated-services-router (environment) · cisco-1100-6g-integrated-services-router (environment) · cisco-1100-8p-integrated-services-router (environment) · cisco-1100-integrated-services-router (environment) · cisco-1100-lte-integrated-services-router (environment) · cisco-1101-4p-integrated-services-router (environment) · cisco-1101-integrated-services-router (environment) · cisco-1109-2p-integrated-services-router (environment) · cisco-1109-4p-integrated-services-router (environment) · cisco-1109-integrated-services-router (environment) · cisco-1111x-8p-integrated-services-router (environment) · cisco-1111x-integrated-services-router (environment) · cisco-111x-integrated-services-router (environment) · cisco-1120-integrated-services-router (environment) · cisco-1160-integrated-services-router (environment) · cisco-4221-integrated-services-router (environment) · cisco-4331-integrated-services-router (environment) · cisco-4431-integrated-services-router (environment) · cisco-4451-integrated-services-router (environment) · cisco-4461-integrated-services-router (environment) · cisco-asr-1000-x (environment) · cisco-asr-1001 (environment) · cisco-asr-1001-x (environment) · cisco-asr-1002 (environment) · cisco-asr-1002-x (environment) · cisco-asr-1004 (environment) · cisco-asr-1006 (environment) · cisco-asr-1013 (environment) · cisco-asr1001-hx (environment) · cisco-asr1001-hx-rf (environment) · cisco-asr1001-x-rf (environment) · cisco-asr1001-x-ws (environment) · cisco-asr1002-hx (environment) · cisco-asr1002-hx-rf (environment) · cisco-asr1002-hx-ws (environment) · cisco-asr1002-x-rf (environment) · cisco-asr1002-x-ws (environment) · cisco-catalyst-9800-40 (environment) · cisco-catalyst-9800-80 (environment) · cisco-catalyst-9800-cl (environment) · cisco-catalyst-9800-l (environment) · cisco-catalyst-9800-l-c (environment) · cisco-catalyst-9800-l-f (environment) · cisco-catalyst-c9200-24p (environment) · cisco-catalyst-c9200-24t (environment) · cisco-catalyst-c9200-48p (environment) · cisco-catalyst-c9200-48t (environment) · cisco-catalyst-c9200l-24p-4g (environment) · cisco-catalyst-c9200l-24p-4x (environment) · cisco-catalyst-c9200l-24pxg-2y (environment) · cisco-catalyst-c9200l-24pxg-4x (environment) · cisco-catalyst-c9200l-24t-4g (environment) · cisco-catalyst-c9200l-24t-4x (environment) · cisco-catalyst-c9200l-48p-4g (environment) · cisco-catalyst-c9200l-48p-4x (environment) · cisco-catalyst-c9200l-48pxg-2y (environment) · cisco-catalyst-c9200l-48pxg-4x (environment) · cisco-catalyst-c9200l-48t-4g (environment) · cisco-catalyst-c9200l-48t-4x (environment) · cisco-catalyst-c9300-24p (environment) · cisco-catalyst-c9300-24s (environment) · cisco-catalyst-c9300-24t (environment) · cisco-catalyst-c9300-24u (environment) · cisco-catalyst-c9300-24ux (environment) · cisco-catalyst-c9300-48p (environment) · cisco-catalyst-c9300-48s (environment) · cisco-catalyst-c9300-48t (environment) · cisco-catalyst-c9300-48u (environment) · cisco-catalyst-c9300-48un (environment) · cisco-catalyst-c9300-48uxm (environment) · cisco-catalyst-c9300l-24p-4g (environment) · cisco-catalyst-c9300l-24p-4x (environment) · cisco-catalyst-c9300l-24t-4g (environment) · cisco-catalyst-c9300l-24t-4x (environment) · cisco-catalyst-c9300l-48p-4g (environment) · cisco-catalyst-c9300l-48p-4x (environment) · cisco-catalyst-c9300l-48t-4g (environment) · cisco-catalyst-c9300l-48t-4x (environment) · cisco-catalyst-c9404r (environment) · cisco-catalyst-c9407r (environment) · cisco-catalyst-c9410r (environment) · cisco-catalyst-c9500-12q (environment) · cisco-catalyst-c9500-16x (environment) · cisco-catalyst-c9500-24q (environment) · cisco-catalyst-c9500-24y4c (environment) · cisco-catalyst-c9500-32c (environment) · cisco-catalyst-c9500-32qc (environment) · cisco-catalyst-c9500-40x (environment) · cisco-catalyst-c9500-48y4c (environment) · cisco-csr-1000v (environment) · cisco-ws-c3650-12x48uq (environment) · cisco-ws-c3650-12x48ur (environment) · cisco-ws-c3650-12x48uz (environment) · cisco-ws-c3650-24pd (environment) · cisco-ws-c3650-24pdm (environment) · cisco-ws-c3650-24ps (environment) · cisco-ws-c3650-24td (environment) · cisco-ws-c3650-24ts (environment) · cisco-ws-c3650-48fd (environment) · cisco-ws-c3650-48fq (environment) · cisco-ws-c3650-48fqm (environment) · cisco-ws-c3650-48fs (environment) · cisco-ws-c3650-48pd (environment) · cisco-ws-c3650-48pq (environment) · cisco-ws-c3650-48ps (environment) · cisco-ws-c3650-48td (environment) · cisco-ws-c3650-48tq (environment) · cisco-ws-c3650-48ts (environment) · cisco-ws-c3650-8x24uq (environment) · cisco-ws-c3850 (environment) · cisco-ws-c3850-12s (environment) · cisco-ws-c3850-12x48u (environment) · cisco-ws-c3850-12xs (environment) · cisco-ws-c3850-24p (environment) · cisco-ws-c3850-24s (environment) · cisco-ws-c3850-24t (environment) · cisco-ws-c3850-24u (environment) · cisco-ws-c3850-24xs (environment) · cisco-ws-c3850-24xu (environment) · cisco-ws-c3850-48f (environment) · cisco-ws-c3850-48p (environment) · cisco-ws-c3850-48t (environment) · cisco-ws-c3850-48u (environment) · cisco-ws-c3850-48xs (environment)

1100-4G Integrated Services Router · Ciscodevice

80%

All versions

1100-4Gltegb Integrated Services Router · Ciscodevice

80%

All versions

1100-4Gltena Integrated Services Router · Ciscodevice

80%

All versions

1100-4P Integrated Services Router · Ciscodevice

80%

All versions