{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/resource-consumption/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.5,"id":"CVE-2026-26171"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["CVE-2026-26171","dotnet","denial-of-service","dos","resource-consumption"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-26171 is a denial-of-service vulnerability affecting the .NET framework. This vulnerability stems from uncontrolled resource consumption, allowing an unauthenticated remote attacker to exhaust server resources. The vulnerability was published on April 14, 2026. Successful exploitation can lead to server unresponsiveness or complete service disruption. While the specific attack vector is not detailed in the source document, similar vulnerabilities in .NET have been exploited via crafted network requests that trigger excessive memory allocation or CPU usage. This vulnerability could affect any application running on a vulnerable .NET framework version, making it critical for organizations to patch their systems.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a .NET application running on a vulnerable system exposed to the network.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious network request designed to exploit the uncontrolled resource consumption vulnerability (CVE-2026-26171).\u003c/li\u003e\n\u003cli\u003eThe crafted request is sent to the vulnerable .NET application.\u003c/li\u003e\n\u003cli\u003eThe application processes the malicious request, triggering excessive resource allocation (e.g., memory or CPU).\u003c/li\u003e\n\u003cli\u003eRepeated or sustained malicious requests cause the server\u0026rsquo;s resources to become exhausted.\u003c/li\u003e\n\u003cli\u003eLegitimate user requests are delayed or rejected due to resource exhaustion.\u003c/li\u003e\n\u003cli\u003eThe .NET application becomes unresponsive, leading to a denial-of-service condition.\u003c/li\u003e\n\u003cli\u003eThe server hosting the .NET application may crash, resulting in complete service disruption.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-26171 can lead to a denial-of-service condition, rendering .NET applications and the services they provide unavailable. The impact ranges from temporary service disruption to complete server crashes. The vulnerability has a CVSS v3.1 score of 7.5, indicating a high severity. The number of affected applications depends on the prevalence of vulnerable .NET framework versions within an organization\u0026rsquo;s infrastructure. If successfully exploited, this can lead to significant business interruption and reputational damage.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the patch provided by Microsoft for CVE-2026-26171 as soon as possible to remediate the vulnerability (\u003ca href=\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171)\"\u003ehttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171)\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eMonitor network traffic for suspicious patterns indicative of denial-of-service attacks, such as a sudden surge in requests to .NET application endpoints. Deploy the Sigma rule detecting a high number of connections from a single source IP.\u003c/li\u003e\n\u003cli\u003eImplement resource monitoring on servers running .NET applications to detect unusual CPU or memory usage that may indicate exploitation attempts.\u003c/li\u003e\n\u003cli\u003eReview and harden network segmentation to limit the potential impact of a successful denial-of-service attack.\u003c/li\u003e\n\u003cli\u003eConsider using a Web Application Firewall (WAF) to filter malicious requests and mitigate potential exploitation attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-15T12:00:00Z","date_published":"2026-04-15T12:00:00Z","id":"/briefs/2026-04-dotnet-dos/","summary":"CVE-2026-26171 is a vulnerability in .NET that allows an unauthorized attacker to perform a denial-of-service attack over a network due to uncontrolled resource consumption.","title":".NET Uncontrolled Resource Consumption Vulnerability (CVE-2026-26171)","url":"https://feed.craftedsignal.io/briefs/2026-04-dotnet-dos/"}],"language":"en","title":"CraftedSignal Threat Feed — Resource-Consumption","version":"https://jsonfeed.org/version/1.1"}