CVE-2023-20035

Cisco IOS XE SD-WAN Software Command Injection Vulnerability

HIGH
7.8
CVSS Score
Published: March 23, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:29 AM UTC
41 products affected across 1 vendorIOS Xe Sd WANAsr 1001-X4431 Integrated Services Router

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges. This vulnerability is due to insufficient input validation by the system CLI. An attacker with privileges to run commands could exploit this vulnerability by first authenticating to an affected device using either local terminal access or a management shell interface and then submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges. An attacker with limited user privileges could use this vulnerability to gain complete control over the system. Note: For additional information about specific impacts, see the Details section of this advisory.

Affected

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

All versions
cisco-1100-4g-6g-integrated-services-router (environment) · cisco-1100-4p-integrated-services-router (environment) · cisco-1100-8p-integrated-services-router (environment) · cisco-1100-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-1120-integrated-services-router (environment) · cisco-1131-integrated-services-router (environment) · cisco-1160-integrated-services-router (environment) · cisco-4221-integrated-services-router (environment) · cisco-4321-integrated-services-router (environment) · cisco-4331-integrated-services-router (environment) · cisco-4351-integrated-services-router (environment) · cisco-4431-integrated-services-router (environment) · cisco-4451-integrated-services-router (environment) · cisco-4451-x-integrated-services-router (environment) · cisco-4461-integrated-services-router (environment) · cisco-asr-1001-x (environment) · cisco-asr-1002-hx (environment) · cisco-asr-1006-x (environment) · cisco-asr-1009-x (environment) · cisco-catalyst-8000v-edge (environment) · cisco-catalyst-8200 (environment) · cisco-catalyst-8300 (environment) · cisco-catalyst-8300-1n1s-4t2x (environment) · cisco-catalyst-8300-1n1s-6t (environment) · cisco-catalyst-8300-2n2s-4t2x (environment) · cisco-catalyst-8300-2n2s-6t (environment) · cisco-catalyst-8500 (environment) · cisco-catalyst-8500-4qc (environment) · cisco-catalyst-8500l (environment) · cisco-catalyst-8510csr (environment) · cisco-catalyst-8510msr (environment) · cisco-catalyst-8540csr (environment) · cisco-catalyst-8540msr (environment) · cisco-csr-1000v (environment)
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

7.8HIGHcisco
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-146NVD-CWE-noinfo

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