All vulnerabilities
CVE-2026-20182

Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

Cisco Catalyst SD-WANNetwork & edge
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationExploited in the wildAdded to KEV 14 May 2026CISA KEV
Exploit odds (EPSS)91.8%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline17 May 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionPlease 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. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 7 May 2026Exploit code publicMetasploit
  2. 14 May 2026Added to CISA KEVCISA KEV
  3. 14 May 2026, 16:08 UTCPublishedCVE List

Public exploit code and templates 1

  • Auxiliary moduleCisco Catalyst SD-WAN Controller vHub Authentication Bypass 7 May 2026Metasploit

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

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.

Text from CVE List

Affected versions 60

  • Cisco Catalyst SD-WAN Controlleraffected: 20.6.4CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.9.2CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.3.6CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.7.2CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.7.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.5.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.6.2CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.3.0CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.6.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 17.2.4CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.2.0CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.4.6CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.1.0CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.2.4CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.2.929CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.3.8CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.4.303CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.3.7CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.4.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.2.097CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.2.0CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.2.099CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.3.6CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.4.2CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 19.0.0CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.9.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.3.5CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.3.1CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 18.3.5CVE List
  • Cisco Catalyst SD-WAN Controlleraffected: 20.6.3CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.12CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.4CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.5CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.1.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.099CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.6CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.7CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.1.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.303CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.098CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.6.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.2.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.8CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.3.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.6CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.9CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.5CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.0.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.3CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.3CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.501_ESCVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.2CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.929CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.31CVE List

References 5