Cleo Multiple Products Unrestricted File Upload Vulnerability

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...

Cleo Harmony Web Service Detection

Binary data cleoharmonydetect.nbin...

Cleo LexiCom Web Service Detection

Binary data cleolexicomdetect.nbin...

Cleo VLTrader Web Service Detection

Binary data cleovltraderdetect.nbin...

Modular Java Backdoor Dropped in Cleo Exploitation Campaign

Many thanks to Rapid7 MDR and incident response teams for their contributions to this analysis. While investigating incidents related to Cleo software exploitation, Rapid7 Labs and MDR observed a novel, multi-stage attack that deploys an encoded Java Archive JAR payload. Our investigation reveale...

Modular Java Backdoor Dropped in Cleo Exploitation Campaign

Many thanks to Rapid7 MDR and incident response teams for their contributions to this analysis. While investigating incidents related to Cleo software exploitation, Rapid7 Labs and MDR observed a novel, multi-stage attack that deploys an encoded Java Archive JAR payload. Our investigation reveale...

Cleo File Transfer Vulnerability Under Exploitation – Patch Pending, Mitigation Urged

Users of Cleo-managed file transfer software are being urged to ensure that their instances are not exposed to the internet following reports of mass exploitation of a vulnerability affecting fully patched systems. Cybersecurity company Huntress said it discovered evidence of threat actors...

Widespread Exploitation of Cleo File Transfer Software (CVE-2024-55956)

On Monday, December 9, multiple security firms began privately circulating reports of in-the-wild exploitation targeting Cleo file transfer software. Late the evening of December 9, security firm Huntress published a blog on active exploitation of three different Cleo products docs: Cleo VLTrader...

Widespread Exploitation of Cleo File Transfer Software (CVE-2024-55956)

On Monday, December 9, multiple security firms began privately circulating reports of in-the-wild exploitation targeting Cleo file transfer software. Late the evening of December 9, security firm Huntress published a blog on active exploitation of three different Cleo products docs: Cleo VLTrader...

VulnCheck KEV: CVE-2024-55956

Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload vulnerability that could allow an unauthenticated user to import and execute arbitrary bash or PowerShell commands on the host system by leveraging the default settings of the Autoru...

VulnCheck KEV: CVE-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...

Cleo LexiCom, VLTrader, and Harmony Unauthenticated Remote Code Execution

This module exploits an unauthenticated file write vulnerability in Cleo LexiCom, VLTrader, and Harmony versions 5.8.0.23 and below. Module Options msf use exploit/multi/http/cleo/rcecve202455956 msf undefinedrcecve202455956 show actions ...actions... msf undefinedrcecve202455956 set ACTION msf...

CVE-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...

CVE-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...

CVE-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. Recent assessments: sfewer-r7 at July 11, 2025 9:37am UTC reported: CVE-2024-50623 allows a remote unauthenticated...

CVE-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...

PT-2024-10294

Name of the Vulnerable Software and Affected Versions Cleo Harmony versions prior to 5.8.0.21 Cleo VLTrader versions prior to 5.8.0.21 Cleo LexiCom versions prior to 5.8.0.21 Description A critical vulnerability in Cleo's file transfer software is being actively exploited, allowing unauthenticate...

Cleo多款产品 安全漏洞

Cleo LexiCom and others are products of Cleo, Inc.Cleo LexiCom is an integration platform.Cleo Harmony is a file integration solution.Cleo VLTrader is a secure hosted file transfer software. A security vulnerability exists in various Cleo products that stems from the inclusion of a JavaScript...

CVE-2024-50623

CVE-2024-50623 affects Cleo Harmony, Cleo VLTrader, and Cleo LexiCom prior to 5.8.0.21. It is an unrestricted file upload/download flaw that could lead to remote code execution. PoCs exist (e.g., GitHub exploits), and the recommended remediation is to upgrade to 5.8.0.21 or newer. Some connected ...

GHSA-2P9H-CCW7-33GF cleo is vulnerable to Regular Expression Denial of Service (ReDoS)

An exponential ReDoS Regular Expression Denial of Service can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.setrows method...