CVE-2026-20245

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 25.32%
EPSS Percentile: 97.90%
CISA KEV: YES — Known Exploited Vulnerability

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@cisco.com
Published: 05-Jun-2026 06:17
Last Modified: 23-Jul-2026 14:10
EPSS Date: 2026-10-12
CWE: CWE-116

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2026-06-09
Remediation Due: 2026-06-23
Known Ransomware Campaign Use: Unknown
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx ; https://nvd.nist.gov/vuln/detail/CVE-2026-20245

Affected Products / Versions

cisco / catalyst_sd-wan_manager
Version / affected range: * · before (exclusive) 20.9.9.1
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 20.10 · before (exclusive) 20.12.5.4
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 20.12.6 · before (exclusive) 20.12.6.2
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 20.13 · before (exclusive) 20.15.4.4
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 20.15.5 · before (exclusive) 20.15.5.2
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 20.16 · before (exclusive) 20.18.2.2
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: * · from (inclusive) 26.1 · before (exclusive) 26.1.1.1
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco / catalyst_sd-wan_manager
Version / affected range: 20.12.7
cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.7:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · before (exclusive) 20.9.9.1
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 20.10 · before (exclusive) 20.12.5.4
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 20.12.6 · before (exclusive) 20.12.6.2
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 20.13 · before (exclusive) 20.15.4.4
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 20.15.5 · before (exclusive) 20.15.5.2
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 20.16 · before (exclusive) 20.18.2.2
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: * · from (inclusive) 26.1 · before (exclusive) 26.1.1.1
cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*
cisco / sd-wan_vsmart_controller
Version / affected range: 20.12.7
cpe:2.3:a:cisco:sd-wan_vsmart_controller:20.12.7:*:*:*:*:*:*:*

References

Last enrichment sync: 12-Oct-2026 23:09
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (3)

Cisco SD-WAN Attacks Zero-Day Exploitation of Vulnerability (CVE-2026-20245) in Cisco Catalyst SD-WAN Manager Unknown 06/25/26 Analysis Maps 54 Network Indicators Linked to Five 2026 Cyberattacks
CVE-2026-20245 Recorded Future Reported 59 High-Impact Vulnerabilities in June, 56 Actively Exploited
After gaining initial access, the threat actor exploited a zero-day vulnerability (CVE-2026-20245) in Cisco Catalyst SD-WAN to escalate privileges from a compromised administrative account to root-level access. Mandiant Details Zero-Day Exploitation of Cisco Catalyst SD-WAN Manager

CVE (57)

Malware (6)

People (4)

Threat Actors (8)

MITRE ATT&CK (9)

Vendors (26)

Products (63)

Tools (3)

Industries (4)

Countries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.