CVE-2025-31161

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2025-04-07. Federal remediation due 2025-04-28.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

99.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 100.0% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-04-03 00:00Z1 YR AGO

Last updated

2025-10-21 22:55Z10 MO AGO

Reserved

2025-03-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-305Authentication Bypass by Primary WeaknessBase

Data version

5.1

Document digest

1691e4ab80cae9b6e8217b773ab2297ca16bf1d4dbe837f0deeaa2bb019af749

• outpost24.comhttps://outpost24.com/blog/crushftp-auth-bypass-vulnerability/
• crushftp.comhttps://crushftp.com/crush11wiki/Wiki.jsp?page=Update#section-Update-VulnerabilityInfo
• projectdiscovery.iohttps://projectdiscovery.io/blog/crushftp-authentication-bypass
• www.darkreading.comhttps://www.darkreading.com/vulnerabilities-threats/disclosure-drama-clouds-crushftp-vulnerability-exploitation
• www.huntress.comhttps://www.huntress.com/blog/crushftp-cve-2025-31161-auth-bypass-and-post-exploitation
• attackerkb.comhttps://attackerkb.com/topics/k0EgiL9Psz/cve-2025-2825/rapid7-analysis
• www.infosecurity-magazine.comhttps://www.infosecurity-magazine.com/news/crushftp-flaw-exploited-disclosure/
• www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2025-31161-detect-crushftp-vulnerability
• www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2025-31161-mitigate-crushftp-vulnerability
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31161government-resource