CVE-2026-20133—Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

Vulnerability Name

Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

Description

Cisco Catalyst SD-WAN Manager contains an exposure of sensitive information to an unauthorized actor vulnerability that could allow remote attackers to view sensitive information on affected systems.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

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.

Additional 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

Related News Articles

• Cisco Releases Security Updates for Actively Exploited SD-WAN Manager FlawJune 16, 2026
• Cisco fixes SD-WAN vManage flaw exploited in zero-day attacksJune 15, 2026
• Cisco Catalyst SD-WAN Manager CVE-2026-20245 Flaw Actively Exploited – No Patch AvailableJune 6, 2026
• Cisco warns of unpatched SD-WAN zero-day exploited in attacksJune 5, 2026
• CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access ExploitsMay 15, 2026

Related Weaknesses

• CWE-200