Code execution via overlong FTP folder name
Published Aug 20, 2025 · Updated May 15, 2026
Stack-based buffer overflow in CursorArts FileWrangler 5.30 and earlier allows remote attackers to execute code via a malicious FTP server. The FTP directory-listing parser copies an overlong server-supplied folder name into a fixed-size stack buffer while rendering a LIST response. Merely connecting to an attacker-controlled FTP server with default settings reaches the flaw, enabling code execution in the FileWrangler process.
Summary
What happened
Stack-based buffer overflow in CursorArts FileWrangler 5.30 and earlier allows remote attackers to execute code via a malicious FTP server. The FTP directory-listing parser copies an overlong server-supplied folder name into a fixed-size stack buffer while rendering a LIST response. Merely connecting to an attacker-controlled FTP server with default settings reaches the flaw, enabling code execution in the FileWrangler process.
The record
- CVE
- CVE-2010-20045
- Published
- Aug 20, 2025
- Updated
- May 15, 2026
- Vendor
- CursorArts
- Product
- FileWrangler
- Classifications
- CWE-121, CAPEC-100, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 20, 2025CVE publishedPublication date reported by the CVE source.
- May 15, 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=0 <=5.30
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
Weakness, pattern, technique
Public exploit references
- FileWrangler 5.30 Stack Buffer Overflow Metasploit moduleweaponized · validated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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