Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2025-34299

88
FAUCET Score

CVE-2025-34299 is a critical unauthenticated arbitrary file upload vulnerability affecting Monsta FTP versions 2.11 and earlier. This flaw allows attackers to execute arbitrary code remotely by uploading a specially crafted file from a malicious SFTP server. Rated with a CVSS score of 9.8, the vulnerability has a network attack vector, low attack complexity, and requires no privileges or user interaction, leading to complete compromise of confidentiality, integrity, and availability. It is currently listed on a "Hot List" as active, with public exploit modules available in Metasploit and Nuclei, and has garnered significant community attention and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.11CPE matchmatch criteria
cpe:2.3:a:monstaftp:monsta_ftp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
72.67%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: Monsta FTP downloadFile Remote Code Execution · Nov 7, 2025
Nuclei: CVE-2025-34299 · Dec 11, 2025
This CVE's current EPSS score of 0.7267 is in the 98th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

labs.watchtowr.com / whats-that-coming-over-the-hill-monsta-ftp-remote-code-execution-cve-2025-34299
ExploitThird Party Advisory
monstaftp.com / notes
Release Notes
vulncheck.com / advisories/monsta-ftp-unauthenticated-arbitrary-file-upload
Third Party Advisory