Vulnerability Monitor

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CVE-2025-54309

CrushFTP 10 before 10.8.5 and 11 before 11.3.4_23, when the DMZ proxy feature is not used, mishandles AS2 validation and consequently allows remote attackers to obtain admin access via HTTPS, as exploited in the wild in July 2025.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.0, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from crushftp organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2025-07-18T19:15:25.353

Last Modified

2025-11-05T19:25:42.887

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.0 (CRITICAL)

Weaknesses

Type: Secondary
CWE-420

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	crushftp	crushftp	< 10.8.5	Yes
Application	crushftp	crushftp	< 11.3.4_23	Yes

References

https://www.bleepingcomputer.com/news/security/crushftp-zero-day-exploited-in-attacks-to-gain-admin-access-on-servers/ Press/Media Coverage ([email protected])
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025 Vendor Advisory ([email protected])
https://www.rapid7.com/blog/post/crushftp-zero-day-exploited-in-the-wild/ Press/Media Coverage ([email protected])
https://www.vicarius.io/vsociety/posts/cve-2025-54309-detect-crushftp-vulnerability Third Party Advisory ([email protected])
https://www.vicarius.io/vsociety/posts/cve-2025-54309-mitigate-crushftp-vulnerability Third Party Advisory ([email protected])
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54309 US Government Resource (134c704f-9b21-4f2e-91b3-4a467353bcc0)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For crushftp's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.