CVE-2026-20182CRITICAL 10.0CISA KEVEPSS p99.8%

CVE-2026-20182Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

Cisco / Catalyst SD-WAN

Description

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.

Scoring

CVSS 3.110.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS90.27% probability of exploitation · percentile 99.8% · 2026-08-02T12:03:13Z
Published2026-05-14
Last modified2026-06-16

CISA KEV entry

Added to KEV: 2026-05-14

Underlying weaknesses· 1

CWE-287

References

  1. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk
  2. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW
  3. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20182

1

TypeTargetConfidenceTier
WeaknessImproper Authenticationcwe-2870%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryCisco Catalyst SD-WAN Controller Authentication Bypass Vulnerabilitykev-cve-2026-201820%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability
CVE
Cisco Catalyst SD-WAN Manager Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
CVE
CVE-2026-20129
CVE
Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
CVE
Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
CVE
Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.