CVE-2025-34026

HighActively exploited (CISA KEV)

Description

The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.

SeverityHigh

CVSS7.5

Exploit probability—

ProductVersa Concerto

PublishedMay 21, 2025

First seenMay 21, 2025

Added to KEVJan 22, 2026

Weakness typeCWE-288CWE-288

How to fix

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: Feb 12, 2026

Update

versa-networks concerto12.1.2 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
versa-networks concerto	11.4.0 ≤ v < 12.1.2, 12.1.2, 12.2.0	12.1.2

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