CVE-2025-57633
CVE-2025-57633 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (71st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-27500
- Weakness: CWE-77
- Published:
- Last modified:
Description
A command injection vulnerability in FTP-Flask-python through 5173b68 allows unauthenticated remote attackers to execute arbitrary OS commands. The /ftp.html endpoint's "Upload File" action constructs a shell command from the ftp_file parameter and executes it using os.system() without sanitization or escaping.
Frequently asked questions
- What is CVE-2025-57633?
- A command injection vulnerability in FTP-Flask-python through 5173b68 allows unauthenticated remote attackers to execute arbitrary OS commands. The /ftp.html endpoint's "Upload File" action constructs a shell command from the ftp_file parameter and executes it using os.system() without sanitization or escaping.
- How severe is CVE-2025-57633?
- CVE-2025-57633 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-57633 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-57633?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2025-57633 have an EU (EUVD) identifier?
- Yes. CVE-2025-57633 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27500.
- When was CVE-2025-57633 published?
- CVE-2025-57633 was published on 2025-09-09 and last updated on 2026-06-17.
References
- https://gist.github.com/Spendroslav/1c0c6a6556992291b19c3178e3cb5885
- https://github.com/ajaypp123/FTP-Flask-python/blob/5173b6828244ff9729fa29cc144d74ccbea30a73/ftp_app.py
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