CVE-2025-34026

Versa Concerto Improper Authentication Vulnerability — Versa / Concerto

Risk tier: Monitored

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.

Scoring

  • CVSS: 7.5 (HIGH, 3.1)
  • EPSS exploitation probability: Not yet available
  • EPSS percentile: Not yet available

CISA KEV status

  • Added to KEV: 2026-01-22
  • Remediation due date: 2026-02-12
  • Known ransomware campaign use: Unknown

Weakness types (CWE)

  • CWE-288

References

More HIGH-severity vulnerabilities · All exploited vulnerabilities