Home / Vulnerabilities / CVE-2025-31161
CRITICAL SEVERITY Ransomware Linked
CVE-2025-31161 CrushFTP · CrushFTP

CrushFTP Authentication Bypass Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL
9.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

87.97 %
Predictive Probability
Percentile Rank
99.5 th

Documented as more likely to be exploited than 99.5% of known CVEs.

Detection Date

Apr 07, 2025

Remediation Due

Apr 28, 2025

CISA Catalog Active

Threat Analysis

CrushFTP contains an authentication bypass vulnerability in the HTTP authorization header that allows a remote unauthenticated attacker to authenticate to any known or guessable user account (e.g., crushadmin), potentially leading to a full compromise.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence