CrushFTP Authentication Bypass Vulnerability (CVE-2025-31161)
Severity: critical · Patch status: unknown · Since 2025-04-07 · CVE-2025-31161
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. CISA added CVE-2025-31161 to its Known Exploited Vulnerabilities catalog on Apr 7, 2025, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Apr 28, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
