CVE-2025-34026

HIGH CISA KEV
Published May 21, 2025 Modified Jan 23, 2026 CWE-288

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.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Jan 22, 2026 Remediation due: Feb 12, 2026

Weakness Type (CWE)

CWE-288 CWE-288

Affected Products

Vendor Product
versa-networks concerto
versa-networks concerto
versa-networks concerto

References

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. It has a CVSS v3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2025-34026? +
CVE-2025-34026 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-34026? +
CVE-2025-34026 affects products from versa-networks, specifically: concerto. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-34026? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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