Outbreak Alert: CrushFTP Authentication Bypass Attack

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FortiRecon Digital Risk Protection (DRP), a SaaS-based service, includes External Attack Surface Management, Brand Protection, and Adversary Centric Intelligence. Adversary Centric Intelligence (ACI): leverages FortiGuard Threat Analysis to provide comprehensive coverage of dark web, open-source, and technical threat intelligence, including threat actor insights to enable organizations to respond proactively assess risks, respond faster to incidents, better understand their attackers, and guard assets. The Vulnerability Intelligence Module under Adversary Centric Intelligence (ACI) provides a realistic view of the impact of the vulnerability based upon chatter and discussion of the same across various external sources such as Darkweb, social media, News / Blogs etc.
CVE ID	CVE-2025-31161
CVE Title	CrushFTP Authentication Bypass Vulnerability
NVD Severity	CRITICAL
FortiRecon Severity	CRITICAL
FortiRecon Score	90/100
Epss Score	0.22587
Exploited	Yes
Exploited by Ransomware Group(s)	Yes (Kill ransomware Operators)
Exploited by APT Group(s)	No
Included in CISA KEV List	Yes
Available working exploit(s)	0
Available POC exploit(s)	0
Darknet Mention(s)	6 (xss)
Telegram Mention(s)	0
FortiRecon Intelligence Reporting(s)	7 (FortiGuard Research), 5 (OSINT), 1 (Technical Intelligence)
Vendor Advisory:	https://www.huntress.com/blog/crushftp-cve-2025-31161-auth-bypass-and-post-exploitation https://outpost24.com/blog/crushftp-auth-bypass-vulnerability/ https://www.vicarius.io/vsociety/posts/cve-2025-31161-detect-crushftp-vulnerability https://www.vicarius.io/vsociety/posts/cve-2025-31161-mitigate-crushftp-vulnerability https://attackerkb.com/topics/k0EgiL9Psz/cve-2025-2825/rapid7-analysis https://crushftp.com/crush11wiki/Wiki.jsp?page=Update#section-Update-VulnerabilityInfo https://www.darkreading.com/vulnerabilities-threats/disclosure-drama-clouds-crushftp-vulnerability-e... https://www.infosecurity-magazine.com/news/crushftp-flaw-exploited-disclosure/ https://projectdiscovery.io/blog/crushftp-authentication-bypass