Versa Concerto Improper Authentication Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-01-22
• EPSS: 82% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official 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: Versa Concerto SD-WAN orchestration platform contains an improper authentication vulnerability 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 12 Feb 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• projectdiscovery.io/blog/versa-concerto-authentication-bypass-rceExploitMitigationThird Party Advisory
• security-portal.versa-networks.com/emailbulletins/6830f94328defa375486ff2eVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource