{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/azure-resource-manager-arm/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":["Azure Resource Manager (ARM)"],"_cs_severities":["critical"],"_cs_tags":["privilege-escalation","cloud"],"_cs_type":"advisory","_cs_vendors":["Microsoft"],"content_html":"\u003cp\u003eCVE-2026-47280 is a critical vulnerability affecting Azure Resource Manager (ARM). This improper authentication flaw allows an unauthorized attacker to elevate privileges within a network. Successful exploitation could lead to significant control over Azure resources, potentially impacting data confidentiality, integrity, and availability. This vulnerability was published on 2026-05-22. Defenders should prioritize patching and implementing detection measures to mitigate the risk of exploitation. The vulnerability is scored as 10.0 CRITICAL per CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies an Azure environment utilizing a vulnerable version of Azure Resource Manager (ARM).\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious request that bypasses authentication checks due to the improper authentication flaw described in CVE-2026-47280.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the malicious request to the ARM endpoint.\u003c/li\u003e\n\u003cli\u003eARM processes the request without proper authentication, allowing the attacker to impersonate a legitimate user or service principal.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the elevated privileges to perform unauthorized actions within the Azure environment, such as modifying resource configurations.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control over critical Azure resources, such as virtual machines, databases, or storage accounts.\u003c/li\u003e\n\u003cli\u003eThe attacker exfiltrates sensitive data from compromised resources.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-47280 can lead to a complete compromise of the Azure environment. Attackers can gain unauthorized access to sensitive data, disrupt critical services, and deploy malicious workloads. This can result in significant financial losses, reputational damage, and legal liabilities. The vulnerability\u0026rsquo;s high CVSS score (10.0) reflects its potential for widespread impact and ease of exploitation.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security update provided by Microsoft to address CVE-2026-47280 as soon as possible; refer to the Microsoft advisory at \u003ca href=\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47280\"\u003ehttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47280\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules below to your SIEM to detect potential exploitation attempts targeting CVE-2026-47280.\u003c/li\u003e\n\u003cli\u003eMonitor Azure activity logs for suspicious API calls or resource modifications that may indicate unauthorized access or privilege escalation.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-26T13:55:10Z","date_published":"2026-05-26T13:55:10Z","id":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-47280-arm-privesc/","summary":"CVE-2026-47280 is an improper authentication vulnerability in Azure Resource Manager (ARM) that allows an unauthorized attacker to elevate privileges over a network.","title":"CVE-2026-47280 - Azure Resource Manager (ARM) Improper Authentication Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-47280-arm-privesc/"}],"language":"en","title":"CraftedSignal Threat Feed — Azure Resource Manager (ARM)","version":"https://jsonfeed.org/version/1.1"}