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critical10.0Known exploited

CVE-2026-20182

Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

Exploited in the wild

This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-05-14. Federal due date: 2026-05-17.

Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlined 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.

Impact

Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.

Affected products

VendorProductAffected versions
CiscoCatalyst Sd-Wan Manager
before 20.9.9.1
from 20.10 before 20.12.5.4
from 20.12.6 before 20.12.6.2
from 20.13 before 20.15.4.4
from 20.15.5 before 20.15.5.2
from 20.16 before 20.18.2.2
CiscoSd-Wan Vbond Orchestrator
before 20.9.9.1
from 20.10 before 20.12.5.4
from 20.12.6 before 20.12.6.2
from 20.13 before 20.15.4.4
from 20.15.5 before 20.15.5.2
from 20.16 before 20.18.2.2
CiscoSd-Wan Vsmart Controller
before 20.9.9.1
from 20.10 before 20.12.5.4
from 20.12.6 before 20.12.6.2
from 20.13 before 20.15.4.4
from 20.15.5 before 20.15.5.2
from 20.16 before 20.18.2.2

Weakness classification

CWE-287

References