# CVE-2024-55956: Cleo Multiple Products Unauthenticated File Upload Vulnerability

> CVE-2024-55956: Cleo Multiple Products Unauthenticated File Upload Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-55956
Last updated: 2026-08-05T05:16:42Z

- Published: 2024-12-13 00:00 UTC · Updated: 2026-08-05 05:16 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 94.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-12-17, federal due date 2025-01-07, ransomware use: Known

## Description

In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.

## CISA required action

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

## Affected vendors and products

- Cleo: Multiple Products

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-55956)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-55956)
- [https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending](https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-55956 · Markdown: https://rewindex.com/cve/CVE-2024-55956.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-55956 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:22.036Z