CVE-2025-31161 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2025-04-07
CrushFTP contains an authentication bypass vulnerability in its AWS4-HMAC authorization method. A race condition and a subsequent header parsing error allow unauthenticated attackers to bypass authentication for any known user account, potentially leading to full system compromise.
Yes. CVE-2025-31161 is known to be exploited in the wild, first recorded on 7 April 2025. Treat it as urgent.
How severe is CVE-2025-31161?
Critical severity, with a CVSS score of 9.8, published 7 April 2025.
Which products and versions are affected?
CrushFTP CrushFTP 10 before 10.8.4, 11 before 11.3.1.
Is there a fix for CVE-2025-31161?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-31161 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-31161?
Check whether you run CrushFTP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
CrushFTP CrushFTP 10 before 10.8.4, 11 before 11.3.1
Timeline
2025-03: exploited: Exploitation observed in the wild.