by Kastro
Paper/Archive/CVE-2025-34299

CVE-2025-34299

Monsta Limited of New Zealand Monsta FTP — Monsta FTP <= 2.11 Unauthenticated Arbitrary File Upload

EPSS 73%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 99.4.994 × 2019.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Monsta FTP≤ 2.11–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmonstaftp.com/notesexploitlabs.watchtowr.com/whats-that-coming-over-the-hill-monsta-ftp-remote-code-execution-cve-2025-34299writeupvulncheck.com/advisories/monsta-ftp-unauthenticated-arbitrary-file-upload