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Critical 9.8Published Nov 7, 2025
CVE-2025-34299Monsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads.
Updated under an hour ago ()
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It affects monstaftp monsta_ftp. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Monsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads. This flaw enables attackers to execute arbitrary code by uploading a specially crafted file from a malicious (S)FTP server.
- CVSS
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
monstaftp monsta_ftp monstaftp:monsta_ftp | through 2.11 | NVD |
References
- https://labs.watchtowr.com/whats-that-coming-over-the-hill-monsta-ftp-remote-code-execution-cve-2025-34299/exploit, third-party-advisory
- https://www.monstaftp.com/notes/release-notes
- https://www.vulncheck.com/advisories/monsta-ftp-unauthenticated-arbitrary-file-uploadthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.