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TI-2025-24195 Aliases CVE-2025-34026GHSA-h2mm-jj4p-hm2p

Versa Concerto Actuator Authentication Bypass Information Leak

Priority CRITICAL 97Exploited in the wildCWE-288Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2026-01-22CISA due date 2026-02-12
EPSS 0.8178 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VersaConcerto12.1.2 – 12.2.0—No fix listedCNA
  • Concerto VendorVersa Affected 12.1.2 – 12.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:versa-networks:concerto:*:*:*:*:*:*:*:*11.4.0 to before 12.1.2VulnerableVersa
cpe:2.3:a:versa-networks:concerto:12.1.2:-:*:*:*:*:*:*12.1.2VulnerableVersa
cpe:2.3:a:versa-networks:concerto:12.2.0:*:*:*:*:*:*:*12.2.0VulnerableVersa
  • cpe:2.3:a:versa-networks:concerto:*:*:*:*:*:*:*:* Versions 11.4.0 to before 12.1.2 Vulnerable ·Versa
  • cpe:2.3:a:versa-networks:concerto:12.1.2:-:*:*:*:*:*:* Versions 12.1.2 Vulnerable ·Versa
  • cpe:2.3:a:versa-networks:concerto:12.2.0:*:*:*:*:*:*:* Versions 12.2.0 Vulnerable ·Versa

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-01-22 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2025-34026
  3. 2026-10-03 Alias added: GHSA-h2mm-jj4p-hm2p

References

Exploit 1

Advisory 1

  • TI-2025-24196 Versa Concerto Authentication Bypass File Write Remote Code Execution CVSS 4.0CRITICAL 10.0
  • TI-2025-24194 Versa Concerto Insecure Docker Mount Container Escape CVSS 4.0HIGH 8.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences