CVE-2025-34299
criticalMonsta FTP versions 2.11 and earlier contain a vulnerability that allows unauthenticated arbitrary file uploads.
Vendor / product: Monstaftp — monsta ftp
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
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-11-07 14:15
Modified: 2026-10-18 21:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
monstaftp / monsta_ftp ≤2.11
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://labs.watchtowr.com/whats-that-coming-over-the-hill-monsta-ftp-remote-code-executio... disclosure@vulncheck.com
- https://www.monstaftp.com/notes/ disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/monsta-ftp-unauthenticated-arbitrary-file-upload disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗