Zero-Day Chaos: Cleo Software Vulnerability Sparks Corporate Data Breach Frenzy
Hackers are making a mockery of Cleo’s security by exploiting a zero-day vulnerability in their managed file transfer software. This flaw, tracked as CVE-2023-34362, allows remote code execution, despite a previous patch attempt. It’s like trying to fix a leaky boat with duct tape—ineffective and potentially disastrous.

Hot Take:
Looks like Cleo’s managed file transfer software is having a bit of an identity crisis—it’s deciding whether it wants to be a security fortress or a revolving door for hackers. With a zero-day flaw that has more holes than Swiss cheese, it’s time for Cleo to patch things up before more data gets a one-way ticket out the door!
Key Points:
- Hackers are exploiting a zero-day flaw in Cleo’s secure file transfer products, leading to data theft attacks.
- The vulnerability, CVE-2023-34362, affects versions 5.8.0.21 and earlier and bypasses a previous patch.
- Cleo’s software is used by 4,000 companies, including big names like Target and Walmart.
- The attacks are linked to the Termite ransomware gang, notorious for breaching supply chain software providers.
- Huntress security researchers advise moving Cleo systems behind firewalls and disabling autorun features.
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