CVE-2026-20133
Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
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 notes
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
Description
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| 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 20.5.1.1 20.6.1 20.6.1.1 20.6.2.1 20.6.2.2 20.6.2 20.6.3 20.6.3.1 20.6.4 20.6.5 20.6.5.1 20.6.5.3 20.6.1.2 20.6.3.2 20.6.4.1 20.6.5.2 20.6.5.4 20.6.3.3 20.6.4.2 20.6.3.0.45 20.6.3.0.46 20.6.3.0.47 20.6.3.4 20.6.4.0.21 20.6.5.1.10 20.6.5.1.11 20.6.5.1.7 20.6.5.1.9 20.6.5.2.4 20.6.5.5 20.6.5.2.8 20.6.5.1.13 20.6.6 20.6.7 20.6.8 20.7.1 20.7.1.1 20.7.2 20.8.1 20.9.1 20.9.2 20.9.2.1 20.9.3 20.9.3.1 20.9.2.3 20.9.3.0.12 20.9.3.0.16 20.9.3.0.17 20.9.3.0.18 20.9.3.0.20 20.9.3.0.21 20.9.3.2 20.9.3.2_LI_Images 20.9.4 20.9.4_LI_Images 20.9.3.0.23 20.9.4.1 20.9.5 20.9.5.1 20.9.5.2 20.9.6 20.9.5.3 20.9.7 20.9.7.1 20.9.8 20.10.1 20.10.1.1 20.10.1.2 20.11.1 20.11.1.1 20.11.1.2 20.12.1 20.12.1_LI_Images 20.12.2 20.12.3 20.12.3.1 20.12.4 20.12.4.1 20.12.5 20.12.5.1 20.12.5.2 20.12.6 20.13.1 20.14.1 20.15.1 20.15.2 20.15.3 20.15.3.1 20.15.4 20.15.4.1 20.16.1 20.18.1 20.18.2 |
References
1 LinksRecord Details
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