CVE-2025-34299

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheckCNA
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
VendorProductVersion
monstaftpmonsta_ftp
𝑥
≤ 2.11
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://labs.watchtowr.com/whats-that-coming-over-the-hill-monsta-ftp-remote-code-execution-cve-2025-34299/
https://www.monstaftp.com/notes/
https://www.vulncheck.com/advisories/monsta-ftp-unauthenticated-arbitrary-file-upload