Remote code execution via oversized STOR payload
Published Mar 22, 2026 · Updated Mar 22, 2026
Out-of-bounds write in Freefloat FTP Server 1.0 allows remote attackers to execute arbitrary code through a crafted STOR request. The STOR handler processes an oversized command payload whose 247 padding bytes overwrite the saved return address before attacker-supplied shellcode. Anonymous FTP credentials are sufficient, and successful exploitation runs code in the FTP server process on the Windows host.
Summary
What happened
Out-of-bounds write in Freefloat FTP Server 1.0 allows remote attackers to execute arbitrary code through a crafted STOR request. The STOR handler processes an oversized command payload whose 247 padding bytes overwrite the saved return address before attacker-supplied shellcode. Anonymous FTP credentials are sufficient, and successful exploitation runs code in the FTP server process on the Windows host.
The record
- CVE
- CVE-2019-25614
- Published
- Mar 22, 2026
- Updated
- Mar 22, 2026
- Vendor
- Freefloat AB
- Product
- Freefloat FTP Server
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 22, 2026CVE publishedPublication date reported by the CVE source.
- Mar 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Freefloat FTP Server 1.0 STOR Remote Buffer Overflowweaponized · demonstrated
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Technologies
Your stack
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Your stack
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