CVE-2026-20122: Cisco Catalyst SD-WAN Manger
EPSS24.9%No. 1061 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV100
Same product1
| Field | Value |
|---|---|
| Vendor | Cisco |
| Product | Catalyst SD-WAN Manger |
| Name | Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability |
| Added to KEV | 2026-04-20 |
| US federal due date | 2026-04-23 |
| Ransomware use | Unknown |
| CWE | CWE-648 |
CISA description
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.
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Cisco Catalyst SD-WAN Manger vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-04-20.