CVE DATABASE / CVE-2025-34026
CVE-2025-34026
Versa Concerto Improper Authentication Vulnerability
Confirmed exploited in the wild. Added 2026-01-22.
Federal remediation due 2026-02-12.
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.
Summary
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.
CVSS 3.1 breakdown
| Base score | 7.5 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | NONE |
| Availability | NONE |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- https://projectdiscovery.io/blog/versa-concerto-authentication-bypass-rce
- https://security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2e
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-34026
Data: NIST NVD + CISA KEV. NVD last modified 2026-01-23. Always verify against the vendor advisory before acting.