HIGH CISA KEV Actively Exploited

CVE-2025-34026

Versa Concerto Actuator Authentication Bypass Information Leak

CVSS v3

7.5

HIGH

EPSS Score

71.1%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

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
1/22/2026
Patch Due Date
2/12/2026
Ransomware Use
Unknown

Technical details

CVSS v3 Vector
3.1
Published
5/21/2025
Last Modified
1/23/2026

Frequently asked questions

What is 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 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.

Is CVE-2025-34026 actively exploited?

Yes. CVE-2025-34026 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2/12/2026.

What is the CVSS score for CVE-2025-34026?

CVE-2025-34026 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.

Is CVE-2025-34026 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.