CVE-2020-26071

Cisco SD-WAN vEdge Arbitrary File Creation Vulnerability

Published Nov 18, 2024 CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed

Description

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to create or overwrite arbitrary files on an affected device, which could result in a denial of service (DoS) condition.
The vulnerability is due to insufficient input validation for specific commands. An attacker could exploit this vulnerability by including crafted arguments to those specific commands. A successful exploit could allow the attacker to create or overwrite arbitrary files on the affected device, which could result in a DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Catalyst SD-WAN Manager

unknown

Version	Status	Constraints
`20.1.12`	affected	—
`19.2.1`	affected	—
`18.4.4`	affected	—
`18.4.5`	affected	—
`20.1.1.1`	affected	—
`20.1.1`	affected	—
`19.3.0`	affected	—
`19.2.2`	affected	—
`19.2.099`	affected	—
`18.3.6`	affected	—
`18.3.7`	affected	—
`19.2.0`	affected	—
`18.3.8`	affected	—
`19.0.0`	affected	—
`19.1.0`	affected	—
`18.4.302`	affected	—
`18.4.303`	affected	—
`19.2.097`	affected	—
`19.2.098`	affected	—
`17.2.10`	affected	—
`18.3.6.1`	affected	—
`19.0.1a`	affected	—
`18.2.0`	affected	—
`18.4.3`	affected	—
`18.4.1`	affected	—
`17.2.8`	affected	—
`18.3.3.1`	affected	—
`18.4.0`	affected	—
`18.3.1`	affected	—
`17.2.6`	affected	—
`17.2.9`	affected	—
`18.3.4`	affected	—
`17.2.5`	affected	—
`18.3.1.1`	affected	—
`18.3.5`	affected	—
`18.4.0.1`	affected	—
`18.3.3`	affected	—
`17.2.7`	affected	—
`17.2.4`	affected	—
`18.3.0`	affected	—
`19.2.3`	affected	—
`18.4.501_ES`	affected	—

Cisco

Cisco SD-WAN vContainer

unknown

Version	Status	Constraints
`18.4.5`	affected	—
`20.1.12`	affected	—
`18.3.6`	affected	—
`19.2.1`	affected	—
`19.3.0`	affected	—
`20.1.1`	affected	—
`19.2.2`	affected	—
`18.3.8`	affected	—
`18.4.3`	affected	—
`18.4.4`	affected	—
`18.4.302`	affected	—
`19.1.0`	affected	—
`18.4.303`	affected	—
`19.2.0`	affected	—
`19.2.098`	affected	—
`17.2.10`	affected	—
`18.3.7`	affected	—
`18.3.1`	affected	—
`19.2.099`	affected	—
`19.2.097`	affected	—
`18.3.4`	affected	—
`18.2.0`	affected	—
`18.3.5`	affected	—
`18.4.1`	affected	—
`17.2.5`	affected	—
`17.2.7`	affected	—
`17.2.8`	affected	—
`17.2.9`	affected	—
`18.4.0`	affected	—
`17.2.6`	affected	—
`18.3.0`	affected	—
`17.2.4`	affected	—
`18.3.3`	affected	—
`19.2.3`	affected	—

Cisco

Cisco SD-WAN vEdge Cloud

unknown

Version	Status	Constraints
`19.2.1`	affected	—
`20.1.12`	affected	—
`18.4.4`	affected	—
`19.3.0`	affected	—
`18.3.8`	affected	—
`19.2.2`	affected	—
`20.1.1`	affected	—
`18.3.6`	affected	—
`18.4.3`	affected	—
`18.4.302`	affected	—
`18.4.5`	affected	—
`18.4.303`	affected	—
`19.2.098`	affected	—
`19.1.0`	affected	—
`17.2.10`	affected	—
`19.0.1a`	affected	—
`19.2.099`	affected	—
`18.3.7`	affected	—
`19.2.097`	affected	—
`18.3.1`	affected	—
`19.2.0`	affected	—
`17.2.9`	affected	—
`18.3.4`	affected	—
`18.2.0`	affected	—
`18.4.1`	affected	—
`17.2.5`	affected	—
`18.4.0`	affected	—
`18.3.5`	affected	—
`18.3.3`	affected	—
`17.2.7`	affected	—
`17.2.6`	affected	—
`17.2.8`	affected	—
`18.3.0`	affected	—
`17.2.4`	affected	—
`19.2.3`	affected	—

Cisco

Cisco SD-WAN vEdge Router

unknown

Version	Status	Constraints
`18.4.303`	affected	—
`18.3.7`	affected	—
`19.3.0`	affected	—
`18.2.0`	affected	—
`20.1.12`	affected	—
`19.2.099`	affected	—
`17.2.10`	affected	—
`18.3.3`	affected	—
`18.3.6`	affected	—
`19.0.0`	affected	—
`17.2.6`	affected	—
`18.4.0`	affected	—
`19.1.01`	affected	—
`19.2.098`	affected	—
`18.3.1`	affected	—
`18.4.302`	affected	—
`19.2.2`	affected	—
`18.3.5`	affected	—
`17.2.9`	affected	—
`19.1.0`	affected	—
`20.1.11`	affected	—
`19.2.097`	affected	—
`18.4.5`	affected	—
`17.2.5`	affected	—
`17.2.8`	affected	—
`18.3.8`	affected	—
`18.3.0`	affected	—
`18.4.3`	affected	—
`18.4.4`	affected	—
`19.2.1`	affected	—
`17.2.4`	affected	—
`18.3.4`	affected	—
`19.0.1a`	affected	—
`20.1.1`	affected	—
`17.2.7`	affected	—
`18.4.1`	affected	—
`19.2.0`	affected	—
`19.2.3`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.4:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.5:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.6:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.7:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.8:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.9:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.10:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.2.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.4:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.5:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.7:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.8:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.3:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.4:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.5:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.302:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.303:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.501_es:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.1a:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.1.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.2:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.3:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.097:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.098:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.099:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.3.0:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1.1:::::::*
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.12:::::::*

No data.

Vendor	Product	Versions
Cisco	Sd-wan	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2020-18701	A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to create or overwrite arbitrary files on an affected device, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation for specific commands. An attacker could exploit this vulnerability by including crafted arguments to those specific commands. A successful exploit could allow the attacker to create or overwrite arbitrary files on the affected device, which could result in a DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.192% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vsoln-arbfile-gtsEYxns

History

Aug 4, 2025 2:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco catalyst Sd-wan Manager
CPEs		cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.10:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.4:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.5:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.6:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.7:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.8:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.9:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.2.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.4:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.5:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.7:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.8:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.302:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.303:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.3:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.4:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.501_es:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.5:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.1a:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.1.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.097:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.098:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.099:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.2:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.3:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.3.0:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1.1:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.12:::::::* cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1:::::::*
Vendors & Products		Cisco catalyst Sd-wan Manager

Nov 18, 2024 5:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Nov 18, 2024 4:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to create or overwrite arbitrary files on an affected device, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation for specific commands. An attacker could exploit this vulnerability by including crafted arguments to those specific commands. A successful exploit could allow the attacker to create or overwrite arbitrary files on the affected device, which could result in a DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Title		Cisco SD-WAN vEdge Arbitrary File Creation Vulnerability
Weaknesses		CWE-22
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vsoln-arbfile-gtsEYxns
Metrics		cvssV3_1 `{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/RL:X/RC:X/E:X'}`