{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2018-25223/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["buffer-overflow","remote-code-execution","cve-2018-25223"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCrashmail 1.6 is susceptible to a stack-based buffer overflow vulnerability (CVE-2018-25223) that allows remote attackers to execute arbitrary code. This vulnerability is triggered when the application receives specially crafted input designed to overwrite the stack. Attackers can leverage Return-Oriented Programming (ROP) chains to achieve code execution within the context of the application. Failed exploitation attempts may result in a denial-of-service condition, impacting application availability. Given the network-accessible nature of the vulnerability and the potential for arbitrary code execution, it poses a significant risk to systems running Crashmail 1.6.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable Crashmail 1.6 server exposed to the network.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious input specifically designed to exploit the stack-based buffer overflow vulnerability (CVE-2018-25223). This input includes shellcode or a ROP chain.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the malicious input to the Crashmail application via a network connection.\u003c/li\u003e\n\u003cli\u003eThe application processes the malicious input, triggering the buffer overflow when copying the input data to a fixed-size buffer on the stack.\u003c/li\u003e\n\u003cli\u003eThe overflow overwrites critical stack data, including the return address of the current function.\u003c/li\u003e\n\u003cli\u003eUpon function return, control is redirected to the attacker-controlled address, initiating the execution of the injected shellcode or ROP chain.\u003c/li\u003e\n\u003cli\u003eThe shellcode or ROP chain executes arbitrary commands, potentially including installing malware, creating new user accounts, or exfiltrating sensitive data.\u003c/li\u003e\n\u003cli\u003eIf the exploit fails, the application may crash, resulting in a denial-of-service condition.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows remote attackers to execute arbitrary code on the affected system. This could lead to complete system compromise, including data theft, malware installation, and denial of service. Given the critical CVSS score of 9.8, organizations running vulnerable versions of Crashmail are at high risk. The number of potential victims is dependent on the number of Crashmail 1.6 installations exposed to network traffic.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply available patches or upgrades to mitigate CVE-2018-25223 in Crashmail 1.6.\u003c/li\u003e\n\u003cli\u003eMonitor network traffic for suspicious patterns indicative of exploit attempts targeting Crashmail, using the process_creation Sigma rule below to detect unexpected processes.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the potential impact of a successful exploit.\u003c/li\u003e\n\u003cli\u003eDeploy the provided Sigma rule to detect potential exploitation attempts by monitoring process creations spawned from the crashmail process.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-03-28T12:16:03Z","date_published":"2026-03-28T12:16:03Z","id":"/briefs/2026-03-crashmail-bo/","summary":"Crashmail 1.6 is vulnerable to a stack-based buffer overflow, allowing remote attackers to execute arbitrary code via malicious input and potentially leading to denial of service.","title":"Crashmail 1.6 Stack-Based Buffer Overflow Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-03-crashmail-bo/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2018-25223","version":"https://jsonfeed.org/version/1.1"}