Actively exploited in the wild
Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Cisco - Catalyst SD-WAN Manager · Listed in the CISA KEV since 2026-04-20. This indicates confirmed attacks in production environments.
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.
CVE-2026-20133
MediumCVSS 6.5KEVSummary
A vulnerability in Cisco Catalyst SD-WAN Software due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could access the vshell and read sensitive information from the underlying operating system.
Risk Assessment
Disclosure of sensitive system information could facilitate further attacks and breach organizational data confidentiality.
Recommendation
Update Cisco Catalyst SD-WAN to a patched version and restrict netadmin privileges to the minimum necessary.
Other vulnerabilities in Cisco Catalyst SD-WAN
See all- CVE-2026-20310Critical
Vulnerability in Cisco Catalyst SD-WAN related to improper link resolution before file access (CWE-59). Discovered during internal security review, addressed in a software hardening release.
- CVE-2026-20304Critical
As part of an internal security review in Cisco Catalyst SD-WAN, multiple vulnerabilities related to improper access control (CWE-284) were discovered. A hardened software release addressing these issues has been issued.
- CVE-2026-20303Critical
Cisco Catalyst SD-WAN contains a vulnerability related to improper input validation (CWE-20). It was discovered during an internal security review and addressed in software hardening releases.
- CVE-2026-20245HighActively exploited
A vulnerability in the CLI of Cisco Catalyst SD-WAN devices (Controller, Manager, Validator) allows an authenticated local attacker with netadmin privileges to execute arbitrary commands as root by uploading a crafted file. The issue is due to insufficient input validation. Cisco has observed limited exploitation resulting in configuration changes on edge devices.
- CVE-2026-20313High
As part of an internal security review in Cisco Catalyst SD-WAN, multiple vulnerabilities related to improper link resolution before file access (CWE-1284) were discovered. Hardened software releases addressing these issues have been issued.
- CVE-2026-20312High
As part of an internal security review in Cisco Catalyst SD-WAN, multiple vulnerabilities related to cleartext storage of sensitive information (CWE-312) were discovered. Hardened software releases addressing these issues have been issued.
Original NVD description (English source)
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.