CVE-2025-34026

Versa Concerto Actuator Authentication Bypass Information Leak

Published May 21, 2025 CVSS 4.0 · 9.2 Critical EPSS 81.8% KEV · Listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-16087 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.
History
Type Values Removed Values Added
First Time appeared Versa-networks
Versa-networks concerto
CPEs cpe:2.3:a:versa-networks:concerto:*:*:*:*:*:*:*:*
cpe:2.3:a:versa-networks:concerto:12.1.2:-:*:*:*:*:*:*
cpe:2.3:a:versa-networks:concerto:12.2.0:*:*:*:*:*:*:*
Vendors & Products Versa-networks
Versa-networks concerto
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

kev

{'dateAdded': '2026-01-22T00:00:00+00:00', 'dueDate': '2026-02-12T00:00:00+00:00'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Versa
Versa concerto
CPEs cpe:2.3:a:versa:concerto:*:*:*:*:*:*:*:*
Vendors & Products Versa
Versa concerto
Type Values Removed Values Added
Weaknesses CWE-287
Type Values Removed Values Added
Weaknesses CWE-288
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Versa Concerto Actuator Authentication Bypass Information Leak
Weaknesses CWE-287
References
Metrics cvssV4_0

{'score': 9.2, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jan 23, 2026, 2:34 PM
Reserved
Apr 15, 2025, 7:15 PM
Status
Analyzed
Published
May 21, 2025, 10:15 PM
Modified
Jun 17, 2026, 9:13 AM