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Vulnerabilities

Vulnerability · CVE-2024-50623

Cleo Multiple Products Unrestricted File Upload Vulnerability

Published Oct 27, 2024 · catalog updated Oct 8, 2026 · Cleo Multiple Products

Patch now

CVE-2024-50623 is in the CISA known-exploited catalog, due Jan 3, 2025. Confirm Cleo Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
98.61%
Remediation
Remediation guidance
Affected products
cpe cleo/harmony · cpe cleo/lexicom · cpe cleo/vltrader · vendor Cleo Multiple Products

Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload and download vulnerability that can lead to remote code execution with elevated privileges. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cleo/harmonyversion unspecified
  • cpe cleo/lexicomversion unspecified
  • cpe cleo/vltraderversion unspecified
  • vendor Cleo Multiple Productsversion unspecified

How to fix CVE-2024-50623

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-50623 is in the CISA known-exploited catalog, due Jan 3, 2025. Confirm Cleo Multiple Products against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-434: Unrestricted Upload of File with Dangerous Type. EPSS 98.61%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 27, 2024 · Catalog

    Detected

    Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload and download vulnerability that can lead to remote code execution with elevated privileges.

  2. Dec 13, 2024 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  3. Jan 3, 2025 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  4. Oct 8, 2026 · Catalog

    Updated

    Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload and download vulnerability that can lead to remote code execution with elevated privileges.

Sources

  • CISA KEVConfirmed exploitationCVE-2024-50623

    Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload and download vulnerability that can lead to remote code execution with elevated privileges.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2024-50623

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-50623

    30-day exploitation probability 98.6%

    first.org
  • Metasploit ModulesPublic exploit moduleexploit_multi/http/cleo_rce_cve_2024_55956

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2024-50623

    In Cleo Harmony before 5.8.0.21, VLTrader before 5.8.0.21, and LexiCom before 5.8.0.21, there is an unrestricted file upload and download that could lead to remote code execution.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2024-50623

    Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload and download vulnerability that can lead to remote code execution with elevated privileges.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.