by Kastro CVE-2026-20129
Cisco Cisco Catalyst SD-WAN Manager — Cisco Catayst SD-WAN Authentication Bypass Vulnerability
Description · from the CVE record
A vulnerability in the API user authentication of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain access to an affected system as a user who has the netadmin role. The vulnerability is due to improper authentication for requests that are sent to the API. An attacker could exploit this vulnerability by sending a crafted request to the API of an affected system. A successful exploit could allow the attacker to execute commands with the privileges of the netadmin role. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.
Affected
ProductAffectedFixed inSource
Cisco Catalyst SD-WAN Manager20.1.12–CNA
Cisco Catalyst SD-WAN Manager19.2.1–CNA
Cisco Catalyst SD-WAN Manager18.4.4–CNA
Cisco Catalyst SD-WAN Manager18.4.5–CNA
Cisco Catalyst SD-WAN Manager20.1.1.1–CNA
Cisco Catalyst SD-WAN Manager20.1.1–CNA
Cisco Catalyst SD-WAN Manager19.3.0–CNA
Cisco Catalyst SD-WAN Manager19.2.2–CNA
Cisco Catalyst SD-WAN Manager19.2.099–CNA
Cisco Catalyst SD-WAN Manager18.3.6–CNA
Cisco Catalyst SD-WAN Manager18.3.7–CNA
Cisco Catalyst SD-WAN Manager19.2.0–CNA
Scores by source
cisco (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total