{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/cpes/cpe2.3afreefloatfreefloat_ftp_server1.0/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:freefloat:ftp_server:1.0:*:*:*:*:*:*:*","cpe:2.3:a:freefloat:freefloat_ftp_server:1.0:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":7.3,"id":"CVE-2025-5548"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["FreeFloat FTP Server (1.0)"],"_cs_severities":["critical"],"_cs_tags":["buffer-overflow","rce","ftp"],"_cs_type":"advisory","_cs_vendors":["FreeFloat"],"content_html":"\u003cp\u003eCVE-2025-5548 describes a critical stack-based buffer overflow vulnerability in FreeFloat FTP Server version 1.0. The vulnerability allows an unauthenticated, remote attacker to execute arbitrary code by sending malformed or excessively long strings to the FTP service. The issue stems from insecure handling of client input within the server process, leading to EIP register overwrite and control over the execution flow.\u003c/p\u003e\n\u003cp\u003eAs of October 2026, proof-of-concept (PoC) exploit code has been publicly released, detailing the methodology for triggering a controlled crash, identifying the EIP offset, and executing shellcode via JMP ESP gadgets. Given the nature of the service, which often runs with high privileges on older Windows operating systems (Windows 7/XP), successful exploitation grants an attacker full system access. Defenders should prioritize auditing internal environments for legacy FreeFloat FTP instances, which are now high-risk due to the availability of reliable, weaponized PoC material.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker performs service discovery to locate internet-facing or internal FreeFloat FTP Server instances.\u003c/li\u003e\n\u003cli\u003eThe attacker uses a fuzzer or crafted scripts to send oversized input strings to the FTP service.\u003c/li\u003e\n\u003cli\u003eThe service fails to validate the input length, causing an overflow of the stack buffer.\u003c/li\u003e\n\u003cli\u003eThe input overwrites the EIP register, allowing the attacker to redirect the instruction pointer.\u003c/li\u003e\n\u003cli\u003eThe attacker identifies the EIP offset and specific bad characters that must be avoided in the payload.\u003c/li\u003e\n\u003cli\u003eThe attacker locates a JMP ESP instruction gadget within the application or its loaded modules to redirect execution to the shellcode.\u003c/li\u003e\n\u003cli\u003eThe attacker deploys a payload (e.g., reverse shellcode generated via msfvenom) within the overflowed buffer.\u003c/li\u003e\n\u003cli\u003eThe service executes the injected shellcode, providing the attacker with a remote command shell on the victim machine.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation leads to full compromise of the host system, enabling remote arbitrary code execution with the privileges of the FTP service. This poses a severe risk to organizations still utilizing legacy FTP services for file transfer, as the exploit is reliable and requires no authentication. The vulnerability is applicable to legacy environments, particularly those running Windows XP or Windows 7, where memory protection mechanisms may be less robust than modern operating systems.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cp\u003ePrioritize the immediate decommissioning of FreeFloat FTP Server from the environment, as the software is legacy and vulnerable to exploitation.\nIf immediate decommissioning is not feasible, restrict network access to the FTP service to known, trusted IP addresses using host-based firewalls or network segmentation.\nMonitor process creation events for unusual child processes (e.g., cmd.exe, powershell.exe) spawned by the FTP server process.\u003c/p\u003e\n","date_modified":"2026-10-15T20:04:21Z","date_published":"2026-10-15T20:04:21Z","id":"https://feed.craftedsignal.io/briefs/2026-10-freefloat-ftp-rce/","summary":"A stack-based buffer overflow in FreeFloat FTP Server 1.0 allows remote, unauthenticated attackers to achieve arbitrary code execution via crafted FTP commands.","title":"Stack Buffer Overflow in FreeFloat FTP Server","url":"https://feed.craftedsignal.io/briefs/2026-10-freefloat-ftp-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - Cpe:2.3:a:freefloat:freefloat_ftp_server:1.0:*:*:*:*:*:*:*","version":"https://jsonfeed.org/version/1.1"}