What is CVE-2026-20108?

CVE-2026-20108 is a medium-severity vulnerability in Cisco Catalyst Sd-wan Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-25.

How severe is CVE-2026-20108?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Cisco Catalyst Sd-wan Manager

CVE-2026-20108

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. T…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cisco Catalyst Sd-wan Manager — versions 20.12.1, 20.12.1_LI_Images, 20.12.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cisco-sa-vmanage-xss-ZqkhP9W9

Frequently asked questions

What is CVE-2026-20108?: CVE-2026-20108 is a medium-severity vulnerability in Cisco Catalyst Sd-wan Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-25.
How severe is CVE-2026-20108?: Medium severity. CVSS v3 base score is 5.4 out of 10.