CVE-2025-34026Versa Concerto Actuator Authentication Bypass Information Leak
Known exploited — Versa Concerto Improper Authentication Vulnerability
CISA confirmed this vulnerability is used in real attacks on 22.01.2026. Remediation deadline for US federal agencies: 12.02.2026.
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. https://security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2e ; https://nvd.nist.gov/vuln/detail/CVE-2025-34026
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.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
References and patches
- https://projectdiscovery.io/blog/versa-concerto-authentication-bypass-rce exploitmitigationExploitMitigation
- https://security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2e Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-34026 US Government Resource
CPE matches (NVD) (3)
cpe:2.3:a:versa-networks:concerto:*:*:*:*:*:*:*:*≥ 11.4.0 < 12.1.2cpe:2.3:a:versa-networks:concerto:12.1.2:-:*:*:*:*:*:*cpe:2.3:a:versa-networks:concerto:12.2.0:*:*:*:*:*:*:*