CVE-2025-31161Vulnerability
CrushFTP Authentication Bypass Vulnerability
Reported by 2 independent sources · first reported by Huntress · last reported
Last reported 22 days ago
Fix due 28 Apr 2025
Used by ransomware: knownCISA KEV catalogue
higher than 99% of CVEsFIRST EPSS, as of 6 Oct 2026
What the reports say
4 reports, newest first · the exact sentence from each-
Risky Bulletin: Authorities dismantle KillSec group, arrest members across Europe“KillSec has also been linked to at least one zero-day—CVE-2025-31161 in CrushFTP—but has been recently going under the radar, compared to more famous groups like Qilin, DragonForce, or Akira.”
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Do Tigers Really Change Their Stripes?“On 4 April 2025, the CrushFTP CVE-2025-31161 Auth Bypass and Post-Exploitation blog was published, and on 14 April 2025, the CVE-2025-30406 - Critical Gladinet CentreStack & Triofox Vulnerability Exploited in the Wild blog was published.”
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CVE-2025-30406: Gladinet CentreStack & Triofox Exploited“… tradecraft with these discovery commands and a cluster of activity exploiting the recent CrushFTP vulnerability in our recent blog: CVE-2025-31161 Auth Bypass and Post-Exploitation.”
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CrushFTP CVE-2025-31161 Auth Bypass and Post-Exploitation“CrushFTP CVE-2025-31161 Auth Bypass and Post-Exploitation”
Indicators reported together
named in the same reports- 2.58.56[.]16in 3 reports
- rtb.mftadsrvr[.]comin 2 reports
- 196.251.85[.]31in 1 report
- hxxps://gladinetsupport.s3.us-east-1.amazonaws[.]com/gladinet/securityadvisory-cve-2005.pdfin 1 report
- gladinetsupport.s3.us-east-1.amazonaws[.]comin 1 report
- hxxps://gladinetsupport.s3.us-east-1.amazonaws[.]com/gladinet/securityadvisory-cve-2025-triofox.pdfin 1 report
- hxxp://redacted.oastify[.]com/REDACTEDin 1 report
- redacted.oastify[.]comin 1 report
- hxxp://redacted.oast[.]funin 1 report
- redacted.oast[.]funin 1 report
- 104.21.16[.]1in 1 report
- 104.21.48[.]1in 1 report
- 48b006cb17e75ecd…abca1c5fabbfin 1 report
- 30981d4082b58704…26aef21e75c2in 1 report
- 165.227.7[.]206in 1 report
- 45.84.107[.]76in 1 report
- 172.235.144[.]67in 1 report
- 114c196c39c91575880a5012d06565b1in 1 report
Copy these 18 indicators · defanged
Also named with it: CVE-2025-30406, CVE-2025-2825
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