CVE-2026-20245

HIGH CISA KEV EPSS 95.0%
Published Jun 4, 20263w ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 4, 2026 3w ago
Last Modified Jun 17, 2026 1w ago
KEV Listed Jun 9, 2026 2w ago
KEV Due Jun 23, 2026 6d overdue

Description

A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.  To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

CISA Known Exploited Overdue 6d
Added
Jun 9, 2026
Due
Jun 23, 2026

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

EPSS Exploit Probability
95.0% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 1

CWE-116

Affected Products 16

VendorProductVersionRange
ciscocatalyst_sd-wan_manager* <20.9.9.1
ciscocatalyst_sd-wan_manager*≥20.10  –  <20.12.5.4
ciscocatalyst_sd-wan_manager*≥20.12.6  –  <20.12.6.2
ciscocatalyst_sd-wan_manager*≥20.13  –  <20.15.4.4
ciscocatalyst_sd-wan_manager*≥20.15.5  –  <20.15.5.2
ciscocatalyst_sd-wan_manager*≥20.16  –  <20.18.2.2
ciscocatalyst_sd-wan_manager*≥26.1  –  <26.1.1.1
ciscocatalyst_sd-wan_manager20.12.7any
ciscosd-wan_vsmart_controller* <20.9.9.1
ciscosd-wan_vsmart_controller*≥20.10  –  <20.12.5.4
ciscosd-wan_vsmart_controller*≥20.12.6  –  <20.12.6.2
ciscosd-wan_vsmart_controller*≥20.13  –  <20.15.4.4
ciscosd-wan_vsmart_controller*≥20.15.5  –  <20.15.5.2
ciscosd-wan_vsmart_controller*≥20.16  –  <20.18.2.2
ciscosd-wan_vsmart_controller*≥26.1  –  <26.1.1.1
ciscosd-wan_vsmart_controller20.12.7any

References 3

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx
    Vendor Advisory
  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW
    Vendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20245
    US Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.