CVE-2025-34027: exploitation status and patch state
CVE-2025-34027 · EPSS 37%
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 Spack upload endpoint can be leveraged for a Time-of-Check to Time-of-Use (TOCTOU) write in combination with a race condition to achieve remote code execution via path loading manipulation, allowing an unauthenticated actor to achieve remote code execution (RCE).This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.
Is CVE-2025-34027 exploited?
Not in the CISA KEV catalog.
EPSS puts exploitation in the next 30 days at 37%.
Public exploit code: none found in monitored sources.
Public detection rules exist.
Which products and versions are affected?
No affected package list recorded here yet.
Is there a patch?
No patch identifier recorded here yet.
What PlainSec published about CVE-2025-34027
PlainSec has not published a story about this CVE.