CVE-2026-20133Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Explotación conocida — Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
CISA confirmó el 20.04.2026 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 23.04.2026.
Acción requerida: Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20133
Descripción
A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. A successful exploit could allow the attacker to read sensitive information on the underlying operating system.
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| cisco | catalyst sd-wan manager | < 20.9.8.2 | |
| Cisco | Cisco Catalyst SD-WAN Manager | 17.2.6, 17.2.7, 17.2.8, 17.2.9, 17.2.10, 17.2.4, 17.2.5, 18.3.1.1, 18.3.3.1, 18.3.3, 18.3.4, 18.3.5, 18.3.7, 18.3.8, 18.3.6.1, 18.3.1, 18.3.0, 18.4.0.1, 18.4.3, 18.4.302, 18.4.303, 18.4.4, 18.4.5, 18.4.0, 18.4.1, 18.4.6, 19.2.0, 19.2.097, 19.2.099, 19.2.1, 19.2.2, 19.2.3, 19.2.31, 19.2.929, 19.2.4, 20.1.1.1, 20.1.12, 20.1.1, 20.1.2, 20.1.3, 19.3.0, 19.1.0, 18.2.0, 20.3.1, 20.3.2, 20.3.2.1, 20.3.3, 20.3.3.1, 20.3.4, 20.3.4.1, 20.3.4.2, 20.3.5, 20.3.6, 20.3.7, 20.3.7.1, 20.3.4.3, 20.3.5.1, 20.3.7.2, 20.3.8, 20.4.1, 20.4.1.1, 20.4.1.2, 20.4.2, 20.4.2.2, 20.4.2.1, 20.4.2.3, 20.5.1, 20.5.1.2, 20.5. |
Referencias y parches
- cisco-sa-sdwan-authbp-qwCX8D4v Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20133 US Government Resource
Coincidencias CPE (NVD) (5)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*< 20.9.8.2cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.10 < 20.12.5.3cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.13 < 20.15.4.2cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*≥ 20.16 < 20.18.2.1cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*