{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-32925/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-32925"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["cve-2026-32925","stack-based-buffer-overflow","v-sft"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eV-SFT versions 6.2.10.0 and earlier are susceptible to a critical stack-based buffer overflow vulnerability identified as CVE-2026-32925. This flaw resides within the \u003ccode\u003eVS6ComFile!CV7BaseMap::WriteV7DataToRom\u003c/code\u003e function. The vulnerability is triggered when the software processes a specially crafted V7 file. A successful exploit could allow an attacker to execute arbitrary code within the context of the application. This poses a significant risk to systems utilizing affected versions of V-SFT, as it could lead to complete system compromise. The vulnerability was reported to JPCERT/CC and assigned CWE-121, highlighting the classic stack-based buffer overflow nature of the issue.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker crafts a malicious V7 file designed to exploit the buffer overflow in \u003ccode\u003eVS6ComFile!CV7BaseMap::WriteV7DataToRom\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe user opens the malicious V7 file using a vulnerable version of V-SFT (6.2.10.0 or prior).\u003c/li\u003e\n\u003cli\u003eV-SFT attempts to parse the V7 file, specifically calling the \u003ccode\u003eCV7BaseMap::WriteV7DataToRom\u003c/code\u003e function.\u003c/li\u003e\n\u003cli\u003eDuring the \u003ccode\u003eWriteV7DataToRom\u003c/code\u003e function execution, the crafted V7 file provides input that exceeds the buffer size allocated on the stack.\u003c/li\u003e\n\u003cli\u003eThe excessive input overwrites adjacent memory locations on the stack, including the return address.\u003c/li\u003e\n\u003cli\u003eUpon completion of the \u003ccode\u003eWriteV7DataToRom\u003c/code\u003e function, control is transferred to the overwritten return address.\u003c/li\u003e\n\u003cli\u003eThe attacker redirects code execution to a location containing malicious code injected into the process memory.\u003c/li\u003e\n\u003cli\u003eThe injected code executes with the privileges of the V-SFT application, potentially leading to complete system compromise.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-32925 allows an attacker to execute arbitrary code on systems running vulnerable versions of V-SFT (6.2.10.0 and prior). This could result in complete system compromise, data theft, or denial of service. The exact number of potential victims is unknown, but the severity is high due to the potential for arbitrary code execution.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the patch or upgrade to a non-vulnerable version of V-SFT as provided by the vendor (Fujielectric). Refer to the vendor advisory (\u003ca href=\"https://felib.fujielectric.co.jp/en/M10010/M20060/document_detail/5d9dd71d-9494-41a4-aa5c-8e6b8b21066b?region=en-glb\"\u003ehttps://felib.fujielectric.co.jp/en/M10010/M20060/document_detail/5d9dd71d-9494-41a4-aa5c-8e6b8b21066b?region=en-glb\u003c/a\u003e).\u003c/li\u003e\n\u003cli\u003eMonitor process creation events for V-SFT spawning unusual child processes, which might indicate successful code execution. Utilize the Sigma rule \u0026ldquo;Detect Suspicious V-SFT Child Processes\u0026rdquo; to identify such behavior.\u003c/li\u003e\n\u003cli\u003eImplement file integrity monitoring for the V-SFT executable and related libraries to detect unauthorized modifications.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-01T23:17:02Z","date_published":"2026-04-01T23:17:02Z","id":"/briefs/2026-04-v-sft-buffer-overflow/","summary":"V-SFT versions 6.2.10.0 and prior are vulnerable to a stack-based buffer overflow (CVE-2026-32925) in the VS6ComFile!CV7BaseMap::WriteV7DataToRom function, potentially leading to arbitrary code execution when processing a crafted V7 file.","title":"V-SFT v6.2.10.0 Stack-Based Buffer Overflow (CVE-2026-32925)","url":"https://feed.craftedsignal.io/briefs/2026-04-v-sft-buffer-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-32925","version":"https://jsonfeed.org/version/1.1"}