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How the CVE Works
CVE-2025-5050 is a critical buffer overflow vulnerability in FreeFloat FTP Server 1.0, specifically affecting the BELL command handler. The flaw occurs due to insufficient bounds checking when processing input, allowing remote attackers to overwrite adjacent memory regions. By sending an overly long BELL command payload, an attacker can execute arbitrary code with the privileges of the FTP server. The vulnerability is remotely exploitable without authentication, making it highly dangerous. Publicly disclosed exploit code increases the risk of widespread attacks.
DailyCVE Form
Platform: FreeFloat FTP Server
Version: 1.0
Vulnerability: Buffer Overflow
Severity: Critical
Date: 06/23/2025
Prediction: Patch expected by 07/15/2025
What Undercode Say
Exploit PoC (simplified) import socket target = "192.168.1.100" port = 21 payload = "BELL " + "A" 500 + "\x90\x90\xeb\x1f" s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target, port)) s.send(payload)
How Exploit
- Remote unauthenticated attack
- Crafted BELL command triggers overflow
- Arbitrary code execution
Protection from this CVE
- Apply vendor patch
- Disable BELL command
- Network segmentation
Impact
- Full system compromise
- RCE as server user
- Wormable potential
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
