January 22, 2026 · Applied Cybernetics Group
CVE-2025-34026 — Versa Concerto
Versa Concerto Improper Authentication Vulnerability
- Added to KEV
2026-01-22- Federal due date
2026-02-12- Vendor
- Versa
- Product
- Concerto
- EPSS
- 98.7th percentile (score 0.711, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2025-34026
CISA short description
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.
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.