{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/fortimanager/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["FortiAnalyzer","FortiManager"],"_cs_severities":["medium"],"_cs_tags":["denial-of-service","fortinet","network"],"_cs_type":"threat","_cs_vendors":["Fortinet"],"content_html":"\u003cp\u003eA vulnerability exists in Fortinet FortiAnalyzer and FortiManager that could allow a remote, authenticated attacker to trigger a denial-of-service (DoS) condition. While the specifics of the vulnerability are not detailed in the provided source, the impact is significant, as a successful attack could disrupt normal operations and potentially lead to service unavailability. Defenders should prioritize patching and consider monitoring for unusual activity on FortiAnalyzer and FortiManager devices.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker gains valid credentials for FortiAnalyzer or FortiManager.\u003c/li\u003e\n\u003cli\u003eThe attacker authenticates to the FortiAnalyzer or FortiManager web interface or API.\u003c/li\u003e\n\u003cli\u003eThe attacker sends a crafted request to a specific endpoint or function.\u003c/li\u003e\n\u003cli\u003eThe vulnerable component processes the malicious request.\u003c/li\u003e\n\u003cli\u003eThe processing of the request consumes excessive resources (CPU, memory, I/O).\u003c/li\u003e\n\u003cli\u003eThe device becomes unresponsive or slow to respond to legitimate requests.\u003c/li\u003e\n\u003cli\u003eLegitimate users are unable to access or manage the Fortinet devices.\u003c/li\u003e\n\u003cli\u003eA denial-of-service condition occurs, impacting network monitoring, logging, and security management capabilities.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eA successful denial-of-service attack against FortiAnalyzer and FortiManager can severely impact an organization\u0026rsquo;s security posture. These tools are critical for log analysis, security event monitoring, and device management. Disruption of these services can lead to delayed incident response, missed security alerts, and increased risk of successful attacks. The number of affected organizations would depend on the prevalence of FortiAnalyzer and FortiManager deployments within the target sector.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the latest Fortinet security patches for FortiAnalyzer and FortiManager as soon as possible to remediate the underlying vulnerability.\u003c/li\u003e\n\u003cli\u003eMonitor authentication logs for FortiAnalyzer and FortiManager for unusual login activity (see rule \u0026ldquo;Detect Fortinet Login Anomalies\u0026rdquo;).\u003c/li\u003e\n\u003cli\u003eImplement rate limiting on the FortiAnalyzer and FortiManager web interface and API to mitigate potential DoS attacks.\u003c/li\u003e\n\u003cli\u003eMonitor system resource utilization (CPU, memory, I/O) on FortiAnalyzer and FortiManager devices for unusual spikes that could indicate a DoS attack (see rule \u0026ldquo;Detect Fortinet Resource Exhaustion\u0026rdquo;).\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-13T08:59:58Z","date_published":"2026-05-13T08:59:58Z","id":"https://feed.craftedsignal.io/briefs/2026-05-fortinet-dos/","summary":"A remote, authenticated attacker can exploit a vulnerability in Fortinet FortiAnalyzer and FortiManager to perform a denial-of-service attack, disrupting normal operations.","title":"Fortinet FortiAnalyzer and FortiManager Vulnerability Allows Denial of Service","url":"https://feed.craftedsignal.io/briefs/2026-05-fortinet-dos/"}],"language":"en","title":"CraftedSignal Threat Feed — FortiManager","version":"https://jsonfeed.org/version/1.1"}