CVE-2026-20245
Cisco Catalyst SD-WAN Controller Authenticated Privilege Escalation Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 25.32 % · percentile 98 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-116 — Improper Encoding or Escaping of Output
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20245
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-34341
- GCVE · GCVE-0-2026-20245
CERT-FR advisories
- CERTFR-2026-AVI-0699 — Vulnérabilité dans Cisco Catalyst SD-WAN · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*< 20.9.9.1cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.10 < 20.12.5.4cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.12.6 < 20.12.6.2cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.13 < 20.15.4.4cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.15.5 < 20.15.5.2cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.16 < 20.18.2.2cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 26.1 < 26.1.1.1cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.7:*:*:*:*:*:*:*cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*< 20.9.9.1cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 20.10 < 20.12.5.4cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 20.12.6 < 20.12.6.2cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 20.13 < 20.15.4.4cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 20.15.5 < 20.15.5.2cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 20.16 < 20.18.2.2cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:*≥ 26.1 < 26.1.1.1cpe:2.3:a:cisco:sd-wan_vsmart_controller:20.12.7:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Catalyst SD-WAN Controller | affected 20.6.4 ; affected 20.9.2 ; affected 20.3.6 ; affected 20.7.2 ; affected 20.7.1 ; affected 20.5.1 |
| Cisco · Cisco Catalyst SD-WAN Manager | affected 20.1.12 ; affected 19.2.1 ; affected 18.4.4 ; affected 18.4.5 ; affected 20.1.1.1 ; affected 20.1.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |