cisco-sa-sdwan-authbp-qwCX8D4vCriticalCVSS 9.8

Cisco Catalyst SD-WAN Vulnerabilities

Published
February 25, 2026
Last Modified
April 22, 2026

🔗 CVE IDs covered (5)

CVE-2026-20122 →CVE-2026-20126 →CVE-2026-20128 →CVE-2026-20129 →CVE-2026-20133 →

📋 Description

Multiple vulnerabilities in Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an attacker to access an affected system, elevate privileges to root, gain access to sensitive information, and overwrite arbitrary files.

For more information about these vulnerabilities, see the Details ["#details"] section of this advisory.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.

CVE-2026-20126 — Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability (CVSS 3.1 8.8, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVE-2026-20122 — Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability (CVSS 3.1 5.4, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N) CVE-2026-20128 — Cisco Catalyst SD-WAN Manager Static Credential Vulnerability (CVSS 3.1 7.5, CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H) CVE-2026-20129 — Cisco Catayst SD-WAN Authentication Bypass Vulnerability (CVSS 3.1 9.8, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVE-2026-20133 — Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability (CVSS 3.1 6.5, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

🎯 Affected products331

  • Cisco Catalyst SD-WAN Manager
  • Cisco Catalyst SD-WAN Manager 17.2.10
  • Cisco Catalyst SD-WAN Manager 17.2.4
  • Cisco Catalyst SD-WAN Manager 17.2.5
  • Cisco Catalyst SD-WAN Manager 17.2.6
  • Cisco Catalyst SD-WAN Manager 17.2.7
  • Cisco Catalyst SD-WAN Manager 17.2.8
  • Cisco Catalyst SD-WAN Manager 17.2.9
  • Cisco Catalyst SD-WAN Manager 18.2.0
  • Cisco Catalyst SD-WAN Manager 18.3.0
  • Cisco Catalyst SD-WAN Manager 18.3.1
  • Cisco Catalyst SD-WAN Manager 18.3.1.1
  • Cisco Catalyst SD-WAN Manager 18.3.3
  • Cisco Catalyst SD-WAN Manager 18.3.3.1
  • Cisco Catalyst SD-WAN Manager 18.3.4
  • Cisco Catalyst SD-WAN Manager 18.3.5
  • Cisco Catalyst SD-WAN Manager 18.3.6
  • Cisco Catalyst SD-WAN Manager 18.3.6.1
  • Cisco Catalyst SD-WAN Manager 18.3.7
  • Cisco Catalyst SD-WAN Manager 18.3.8
  • Cisco Catalyst SD-WAN Manager 18.4.0
  • Cisco Catalyst SD-WAN Manager 18.4.0.1
  • Cisco Catalyst SD-WAN Manager 18.4.1
  • Cisco Catalyst SD-WAN Manager 18.4.3
  • Cisco Catalyst SD-WAN Manager 18.4.302
  • Cisco Catalyst SD-WAN Manager 18.4.303
  • Cisco Catalyst SD-WAN Manager 18.4.4
  • Cisco Catalyst SD-WAN Manager 18.4.5
  • Cisco Catalyst SD-WAN Manager 18.4.501_ES
  • Cisco Catalyst SD-WAN Manager 18.4.6
  • +301 more not shown

✅ Remediation

Cisco has released software updates that address this vulnerability. https://software.cisco.com Workarounds: There are no workarounds that address these vulnerabilities. Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.

🔗 References (16)