{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-6350/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-6350"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["cve-2026-6350","buffer-overflow","remote-code-execution"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eOpenfind MailGates and MailAudit are susceptible to a critical stack-based buffer overflow vulnerability, identified as CVE-2026-6350. This flaw allows unauthenticated remote attackers to gain control over the program\u0026rsquo;s execution flow and execute arbitrary code on the affected system. The vulnerability stems from insufficient input validation, leading to a buffer overflow when processing specifically crafted requests. Given the nature of MailGates/MailAudit as email security solutions, successful exploitation can lead to a full compromise of the email infrastructure and potential data breaches. The vulnerability was reported on April 15, 2026, and affects undisclosed versions of MailGates/MailAudit.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated remote attacker identifies a vulnerable MailGates/MailAudit instance.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious network request specifically designed to trigger the stack-based buffer overflow in MailGates/MailAudit.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the crafted request to the targeted MailGates/MailAudit server.\u003c/li\u003e\n\u003cli\u003eThe vulnerable application receives and processes the malicious request without proper input sanitization.\u003c/li\u003e\n\u003cli\u003eThe oversized input overwrites adjacent memory on the stack, including the return address.\u003c/li\u003e\n\u003cli\u003eWhen the function attempts to return, it jumps to an address controlled by the attacker.\u003c/li\u003e\n\u003cli\u003eThe attacker-controlled address points to shellcode injected within the overflowing buffer or elsewhere in memory.\u003c/li\u003e\n\u003cli\u003eThe shellcode executes arbitrary commands on the server, potentially leading to complete system compromise and data exfiltration.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-6350 allows unauthenticated remote attackers to execute arbitrary code on the MailGates/MailAudit server. This can result in full system compromise, allowing attackers to steal sensitive email data, modify email content, or use the compromised server as a launchpad for further attacks. Given that MailGates/MailAudit are used by numerous organizations for email security, a successful widespread attack could impact potentially thousands of organizations and millions of users.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor web server logs for unusual request patterns indicative of buffer overflow attempts targeting MailGates/MailAudit.\u003c/li\u003e\n\u003cli\u003eInspect network traffic for suspicious payloads being sent to MailGates/MailAudit servers, looking for patterns that could indicate exploit attempts.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule provided below to detect potential exploitation attempts targeting CVE-2026-6350.\u003c/li\u003e\n\u003cli\u003eConsult Openfind\u0026rsquo;s security advisories for patches and mitigation steps specific to CVE-2026-6350.\u003c/li\u003e\n\u003cli\u003eIf available apply updates provided by Openfind to remediate CVE-2026-6350 on the MailGates/MailAudit servers.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-16T03:16:30Z","date_published":"2026-04-16T03:16:30Z","id":"/briefs/2026-04-openfind-mailgates-bo/","summary":"Openfind MailGates/MailAudit is vulnerable to a stack-based buffer overflow (CVE-2026-6350) allowing unauthenticated remote attackers to execute arbitrary code by controlling the program's execution flow.","title":"Openfind MailGates/MailAudit Stack-based Buffer Overflow (CVE-2026-6350)","url":"https://feed.craftedsignal.io/briefs/2026-04-openfind-mailgates-bo/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-6350","version":"https://jsonfeed.org/version/1.1"}