CVE-2025-34026 Versa Concerto Actuator Authentication Bypass Information Leak
CriticalCVSS 9.2
EPSS 81.8%
CISA KEV
added 2026-01-22 · due 2026-02-12
Exploited in the wild
- Published
- Updated
- Exploit status
- Exploited in the wild (confirmed)
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.
CISA Known Exploited Vulnerability
- Date added
- 2026-01-22
- Due date (FCEB)
- 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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Versa Concerto | >= 12.1.2, <= 12.2.0 | No fix listed |
| versa-networks concerto | >= 11.4.0, < 12.1.2 | 12.1.2 |
| versa-networks concerto | = 12.1.2 | No fix listed |
| versa-networks concerto | = 12.2.0 | No fix listed |
References
- projectdiscovery.io exploit mitigation third-party-advisory
- www.cisa.gov government-resource us-government-resource
- security-portal.versa-networks.com vendor-advisory