PT-2026-27793 · Cisco · Cisco Catalyst Sd-Wan Manager

Published 2026-03-25 · Updated 2026-03-30 · CVE-2026-20108

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Cisco Catalyst SD-WAN Manager (affected versions not specified)

Description A flaw exists in the web-based management interface that may allow a remote attacker with valid credentials to perform a cross-site scripting (XSS) attack against a user. This is caused by inadequate validation of user-supplied data. An attacker could trick a user into clicking a specially crafted link, potentially enabling the execution of arbitrary script code within the affected interface or gaining access to sensitive browser-based information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2026-06543

CVE-2026-20108

Affected Products

Cisco Catalyst Sd-Wan Manager

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-20108 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-xss-ZqkhP9W9 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06543 · Security Note
• https://twitter.com/0dayPublishing/status/2037547548278194679 · Twitter Post
• https://twitter.com/CVEnew/status/2038618145695432715 · Twitter Post