5.4

CVE-2026-20108: cisco catalyst_sd-wan_manager Cross-site Scripting

CVSS: 5.4v3.1MediumAnalyzed
Published 25-03-2026Last modified 27-03-2026
Open JSON

Vulnerability summary

CVE-2026-20108 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in cisco catalyst_sd-wan_manager. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-03-2026
    PublishedVulnerability first disclosed.
  2. 27-03-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • catalyst_sd-wan_manager≥ 20.12, < 20.12.5.3 | ≥ 20.13, < 20.15.4.2 | ≥ 20.16, < 20.18.2.1 | 20.12.6
  • cisco catalyst sd-wan manager20.12.1 | 20.12.1_LI_Images | 20.12.2 | 20.12.3 | 20.12.3.1 | 20.12.4 | 20.12.4.1 | 20.12.5 | 20.12.5.1 | 20.12.5.2 | 20.12.6 | 20.12.6.1 | 20.12.5.3 | 20.13.1 | 20.14.1 | 20.15.1 | 20.15.2 | 20.15.3 | 20.15.3.1 | 20.15.4 | 20.15.4.1 | 20.15.4.2 | 20.16.1 | 20.18.1

1 vendor · 2 products

References

1 links