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VulnerabilityKnown exploitedExploit likelihood 26%

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

CVE-2026-20122 · CISA KEV · April 20, 2026

Summary

Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

From CISA, quoted as published. Check the source before acting.

What to do

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 required action, quoted.

Affected products

VendorProductAffected versionsFixed
CiscoCatalyst SD-WAN Manger——

Why it's on these mode pages

  • Maritime: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)
  • Pipeline: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)
  • Freight rail: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)
  • Passenger rail and transit: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)
  • Highway and motor carrier: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)
  • Postal and parcel: Vendor table: Cisco (network and remote-access gear used in every mode, all modes) (matched by rule)

Change history

  1. November 9, 2026: First collected by Watch

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