CVE-2026-20108
Summary
| CVE | CVE-2026-20108 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-03-25 16:16:14 UTC |
| Updated | 2026-06-29 18:10:12 UTC |
| Description | A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of the web-based management interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. |
Risk And Classification
Primary CVSS: v3.1 5.4 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Problem Types: CWE-79 | CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| 3.1 | CNA | CVSSV3_1 | 5.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
RequiredScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cisco | Catalyst Sd-wan Manager | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.1_LI_Images | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.6 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.6.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.12.5.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.13.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.14.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.3 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.3.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.4 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.4.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.15.4.2 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.16.1 | Not specified |
| CNA | Cisco | Cisco Catalyst SD-WAN Manager | affected 20.18.1 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanag... | [email protected] | sec.cloudapps.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
There are currently no legacy QID mappings associated with this CVE.