Vulnerability in Versa Concerto
CVE-2025-34026
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…
EPSS: 0.711 (98.7th percentile) — read the EPSS interpretation.
Affected products
- Versa Concerto — versions 12.1.2
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- projectdiscovery.io/blog/versa-concerto-authentication-bypass-rce (exploit, mitigation)
Frequently asked questions
- What is CVE-2025-34026?
- CVE-2025-34026 is a vulnerability in Versa Concerto, classified under Authentication Bypass Using an Alternate Path or Channel. Published 2025-05-21.
- Is CVE-2025-34026 known to be exploited?
- Yes. CVE-2025-34026 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-01-22), indicating it is being actively exploited. 1 public proof-of-concept repositories are indexed.