CVEvulnerability

CVE-2025-34026

9.2 CRITICAL Known exploited Published 2025-05-21 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Versa Concerto Improper Authentication Vulnerability — Versa Concerto

Versa Concerto SD-WAN orchestration platform contains an improper authentication vulnerability 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.

Added to KEV: 2026-01-22
Remediation due: 2026-02-12
Ransomware use: Unknown
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.
Notes: https://security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2e ; https://nvd.nist.gov/vuln/detail/CVE-2025-34026

Status: Analyzed
Published: 2025-05-21
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 4.0 ([email protected]): 9.2 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected]): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses: CWE-288

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.

Affected configurations

• versa-networks concerto (>= 11.4.0 < 12.1.2) • versa-networks concerto 12.1.2 • versa-networks concerto 12.2.0

Weakness · CWE (1)

CWE-288 Authentication Bypass Using an Alternate Path or Channel weakness

References