{"id":58981,"date":"2025-06-17T00:00:00","date_gmt":"2025-06-17T00:00:00","guid":{"rendered":"urn:uuid:331b7cad-2cae-ad95-04e8-c893eedbf70a"},"modified":"2025-06-17T00:00:00","modified_gmt":"2025-06-17T00:00:00","slug":"critical-langflow-vulnerability-cve-2025-3248-actively-exploited-to-deliver-flodrix-botnet","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/critical-langflow-vulnerability-cve-2025-3248-actively-exploited-to-deliver-flodrix-botnet\/","title":{"rendered":"Critical Langflow Vulnerability (CVE-2025-3248) Actively Exploited to Deliver Flodrix Botnet"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/trendmicro.scene7.com\/is\/image\/trendmicro\/Langflow-thumb-resize:Large?qlt=80\"><\/p>\n<div><img decoding=\"async\" src=\"https:\/\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/thumbnails\/Langflow-thumb-resize.jpg\" class=\"ff-og-image-inserted\"><\/div>\n<p>The following table shows the structure if the UDP notification traffic:<\/p>\n<table cellpadding=\"1\" cellspacing=\"0\" border=\"1\" width=\"100%\">\n<tbody readability=\"13.5\">\n<tr readability=\"2\">\n<td colspan=\"2\">KILLDETAIL|PID|PPID|SIGNAL|COMM|EXE|CWD|CMDLINE|SOCKET_COUNT<\/td>\n<\/tr>\n<tr>\n<td>KILLDETAIL<\/td>\n<td>Hardcoded value<\/td>\n<\/tr>\n<tr readability=\"2\">\n<td>PID (Process ID)<\/td>\n<td>Get from PID from \/proc directory<\/td>\n<\/tr>\n<tr readability=\"2\">\n<td>PPID (Parent Process ID)<\/td>\n<td>Get from \/proc\/%d\/stat file with %c %d options<\/td>\n<\/tr>\n<tr readability=\"7\">\n<td>Signal (Action)<\/td>\n<td>Hardcoded values. Possible values (2,3,4,5,8,9)<\/td>\n<\/tr>\n<tr readability=\"2\">\n<td>COMM (Process Name)<\/td>\n<td>Get from \/proc\/%d\/comm file<\/td>\n<\/tr>\n<tr readability=\"4\">\n<td>EXE (Process Executable Path)<\/td>\n<td>Get from \/proc\/%d\/exe file<\/td>\n<\/tr>\n<tr readability=\"4\">\n<td>CWD (Current Working Directory)<\/td>\n<td>Get from \/proc\/%d\/cwd file<\/td>\n<\/tr>\n<tr readability=\"2\">\n<td>CMDLINE (Command Line)<\/td>\n<td>Get from \/proc\/%d\/cmdline file<\/td>\n<\/tr>\n<tr readability=\"2\">\n<td>Number of sockets<\/td>\n<td>Get from \/proc\/%d\/fd\/%s file<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Table 6. UDP notification request anatomy<\/p>\n<p><span class=\"body-subhead-title\">Proactive security with Trend Vision One\u2122<\/span><\/p>\n<p><a href=\"https:\/\/www.trendmicro.com\/en_us\/business\/products\/one-platform.html\">Trend Vision One<\/a>\u2122 is the only AI-powered enterprise cybersecurity platform that centralizes cyber risk exposure management, security operations, and robust layered protection. This comprehensive approach helps you predict and prevent threats, accelerating proactive security outcomes across your entire digital estate.<\/p>\n<p>Backed by decades of cybersecurity leadership and Trend Cybertron, the industry&#8217;s first proactive cybersecurity AI, it delivers proven results: a 92% reduction in ransomware risk and a 99% reduction in detection time. Security leaders can benchmark their posture and showcase continuous improvement to stakeholders.<\/p>\n<p><span class=\"body-subhead-title\">Trend protections for CVE-2025-3248<\/span><\/p>\n<p>The following protections have been available to Trend Micro customers:<\/p>\n<p><b>Trend Vision One\u2122 Network Security<\/b><\/p>\n<ul>\n<li><span class=\"rte-red-bullet\">TippingPoint Intrusion Prevention Filters:<\/span>\n<ul>\n<li>&nbsp;<\/li>\n<li><span class=\"rte-circle-bullet\">46063: TCP: Trojan.Linux.FlodrixBot.A Runtime Detection<\/span><\/li>\n<li>&nbsp;<\/li>\n<li><span class=\"rte-circle-bullet\">46064: UDP: Trojan.Linux.FlodrixBot.A Runtime Detection<\/span><\/li>\n<li>&nbsp;<\/li>\n<li><span class=\"rte-circle-bullet\">45744: HTTP: Langflow Code Injection Vulnerabi<\/span>lity<\/li>\n<li>&nbsp;<\/li>\n<\/ul>\n<\/li>\n<li><span class=\"rte-red-bullet\">Deep Discovery Inspector (DDI) Relevance Rule: 5411: CVE-2025-3248 &#8211; LANGFLOW RCE &#8211; HTTP (Request)<\/span><\/li>\n<\/ul>\n<p><b>Trend Micro\u2122 Threat Intelligence<\/b><\/p>\n<p>To stay ahead of evolving threats, Trend customers can access Trend Vision One\u2122 Threat Insights, which provides the latest insights from Trend Research on emerging threats and threat actors.&nbsp;&nbsp;<\/p>\n<p><b><i>Trend Vision One Threat Insights<\/i><\/b><\/p>\n<p>Emerging Threats: <a href=\"https:\/\/portal.xdr.trendmicro.com\/index.html#\/app\/ti\/intelligence_insights?name=Critical%20Langflow%20Vulnerability%20%5BCVE-2025-3248%5D%20Actively%20Exploited%20to%20Deliver%20Flodrix%20Botnet\">Critical Langflow Vulnerability [CVE-2025-3248] Actively Exploited to Deliver Flodrix Botnet<\/a><\/p>\n<p><b>Hunting Queries<\/b><\/p>\n<p><b><i>Trend Vision One Search App\u202f<\/i><\/b><\/p>\n<p>Trend Vision One customers can use the Search App to match or hunt the malicious indicators mentioned in this blog post with data in their environment.\u202f\u202f\u202f\u202f<\/p>\n<p><i>C&amp;C connections of Flodrix Botnet<\/i><\/p>\n<p><i>eventSubId:602 AND objectIp:(80.66.75.121 OR 45.61.137.226 OR 206.71.149.179 OR 188.166.68.21)<\/i><\/p>\n<p>More hunting queries are available for Vision One customers with\u202f<a href=\"https:\/\/www.trendmicro.com\/en_us\/business\/products\/one-platform\/threat-insights.html\">Threat Insights Entitlement enabled<\/a>\u202f<\/p>\n<p><span class=\"body-subhead-title\">Indicators of Compromise (IOCs)<\/span><\/p>\n<p>You can find the IoCs for this blog <a href=\"https:\/\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/25\/f\/critical-langflow-vulnerability-cve-2025-3248\/Langflow-CVE-2025-3248-IoC-final.txt\"><span class=\"bs-modal\">here<\/span><\/a>.<\/p>\n<p> Read More <a href=\"https:\/\/www.trendmicro.com\/en_us\/research\/25\/f\/langflow-vulnerability-flodric-botnet.html\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This blog uncovers an active campaign exploiting CVE-2025-3248 in Langflow versions before 1.3.0 that deploys the Flodrix botnet, enabling threat actors to achieve full system compromise, initiate DDoS attacks, and potentially exfiltrate sensitive data. Read More HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":58982,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[61],"tags":[9510,9555,9509],"class_list":["post-58981","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trendmicro","tag-trend-micro-research-articles-news-reports","tag-trend-micro-research-exploitsvulnerabilities","tag-trend-micro-research-research"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Critical Langflow Vulnerability (CVE-2025-3248) Actively Exploited to Deliver Flodrix Botnet 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat 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