harmony vulnerabilities and fixes

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

harmony has 3 tracked vulnerabilities, 3 critical and 2 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 2. Most recent: 2025-11-12. Highest priority: CVE-2024-50623 (score 99/100).

• CVE-2024-50623 CRITICAL 9.8 EXPLOITED UPGRADE UPGRADE Cleo Multiple Products Unrestricted File Upload Vulnerability
• CVE-2024-55956 CRITICAL 9.8 EXPLOITED UPGRADE UPGRADE Cleo Multiple Products Unauthenticated File Upload Vulnerability
• CVE-2025-56385 CRITICAL 9.8 DOWNGRADE A SQL injection vulnerability exists in the login functionality of WellSky Harmony version 4.1.0.2.83 within t

FAQ

How do I fix harmony 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 harmony being exploited right now?

Yes: 2 harmony CVEs are on the CISA Known Exploited Vulnerabilities list, so patch those first.

Which harmony CVE should I patch first?

CVE-2024-50623 currently ranks highest (99/100): Cleo Multiple Products Unrestricted File Upload Vulnerability.

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