concerto vulnerabilities and fixes

Recent CVEs affecting concerto, with upgrade or downgrade steps. 3 tracked.

concerto has 3 tracked vulnerabilities, 1 critical and 1 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 2. Most recent: 2025-05-21. Highest priority: CVE-2025-34026 (score 86/100).

• CVE-2025-34027 CRITICAL 9.0 UPGRADE The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reve
• CVE-2025-34025 HIGH 8.8 DOWNGRADE The Versa Concerto SD-WAN orchestration platform is vulnerable to an privileges escalation and container escap
• CVE-2025-34026 HIGH 7.5 EXPLOITED UPGRADE Versa Concerto Improper Authentication Vulnerability

FAQ

How do I fix concerto vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is concerto being exploited right now?

Yes: 1 concerto CVE is on the CISA Known Exploited Vulnerabilities list, so patch it first.

Which concerto CVE should I patch first?

CVE-2025-34026 currently ranks highest (86/100): Versa Concerto Improper Authentication Vulnerability.

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