{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/windows-kernel/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-40369"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Windows Kernel"],"_cs_severities":["high"],"_cs_tags":["privilege-escalation","windows-kernel","cve"],"_cs_type":"advisory","_cs_vendors":["Microsoft Corporation"],"content_html":"\u003cp\u003eCVE-2026-40369 is a privilege escalation vulnerability affecting the Windows Kernel. Disclosed on May 12, 2026, this vulnerability stems from an untrusted pointer dereference, potentially allowing an attacker with local access and authorized privileges to execute code with elevated permissions. This could lead to a complete compromise of the affected system. Successful exploitation would require an attacker to already have some level of access to the system.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker gains initial access to the system with standard user privileges.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious program to trigger the untrusted pointer dereference in the Windows Kernel.\u003c/li\u003e\n\u003cli\u003eThe malicious program exploits CVE-2026-40369 to overwrite kernel memory.\u003c/li\u003e\n\u003cli\u003eThe kernel attempts to dereference the attacker-controlled pointer.\u003c/li\u003e\n\u003cli\u003eDue to the untrusted nature of the pointer, the dereference operation accesses an arbitrary memory location.\u003c/li\u003e\n\u003cli\u003eAttacker redirects code execution to a shellcode injected into a memory region.\u003c/li\u003e\n\u003cli\u003eThe shellcode elevates the attacker\u0026rsquo;s privileges to SYSTEM.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-40369 allows a local attacker to escalate their privileges to SYSTEM. This would give the attacker complete control over the compromised system, allowing them to install malware, steal sensitive data, or disrupt critical services. The vulnerability has a CVSS v3.1 score of 7.8, indicating a high severity.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the patch released by Microsoft to remediate CVE-2026-40369 as soon as possible. Reference: \u003ca href=\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40369\"\u003ehttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40369\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect Potential CVE-2026-40369 Exploitation Attempt\u0026rdquo; to identify suspicious process creation events indicative of exploitation attempts.\u003c/li\u003e\n\u003cli\u003eMonitor for unusual system calls or API calls that could be indicative of kernel-level exploitation.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-12T18:43:51Z","date_published":"2026-05-12T18:43:51Z","id":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-40369/","summary":"CVE-2026-40369 is an untrusted pointer dereference vulnerability in the Windows Kernel that allows a locally authorized attacker to escalate privileges.","title":"CVE-2026-40369 - Windows Kernel Untrusted Pointer Dereference Privilege Escalation","url":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-40369/"}],"language":"en","title":"CraftedSignal Threat Feed — Windows-Kernel","version":"https://jsonfeed.org/version/1.1"}