{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/products/red-hat-enterprise-linux/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"id":"CVE-2025-68741"},{"cvss":7.8,"id":"CVE-2025-38024"},{"cvss":7.8,"id":"CVE-2025-38180"},{"cvss":7.8,"id":"CVE-2026-23111"},{"cvss":7.1,"id":"CVE-2026-23204"}],"_cs_exploited":false,"_cs_products":["Red Hat CodeReady Linux Builder","Red Hat Enterprise Linux"],"_cs_severities":["critical"],"_cs_tags":["vulnerability","kernel","redhat","execution","privilege-escalation","denial-of-service"],"_cs_type":"advisory","_cs_vendors":["Red Hat"],"content_html":"\u003cp\u003eOn April 30, 2026, CERT-FR published an advisory regarding multiple vulnerabilities in the Red Hat Linux kernel. These vulnerabilities, detailed in Red Hat Security Advisories RHSA-2026:10756, RHSA-2026:10996, and RHSA-2026:11313, can lead to significant security risks including arbitrary code execution, privilege escalation, and remote denial of service. The affected systems include various versions and architectures of Red Hat CodeReady Linux Builder and Red Hat Enterprise Linux. Successful exploitation of these vulnerabilities could allow attackers to gain unauthorized access, control systems, or disrupt services, impacting the confidentiality, integrity, and availability of affected systems.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eInitial Compromise (via unconfirmed vector):\u003c/strong\u003e An attacker identifies a vulnerable Red Hat Linux system running an affected kernel version. While the exact exploit vector isn\u0026rsquo;t specified in the advisory, it involves a vulnerability in the kernel.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eExploit Trigger:\u003c/strong\u003e The attacker triggers a specific kernel vulnerability, such as those identified as CVE-2026-23001 or CVE-2026-31402, by sending a crafted input to a vulnerable kernel component. The specific method depends on the nature of each CVE.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eCode Execution:\u003c/strong\u003e Upon successful exploitation, the attacker achieves arbitrary code execution within the kernel context. This allows the attacker to run malicious code directly on the system.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrivilege Escalation:\u003c/strong\u003e Leveraging the code execution capability, the attacker exploits another vulnerability (e.g., CVE-2025-68741) to escalate privileges to root or SYSTEM. This may involve exploiting race conditions, memory corruption bugs, or other privilege escalation flaws within the kernel.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eSystem Control:\u003c/strong\u003e With elevated privileges, the attacker gains full control over the compromised system. They can now access sensitive data, modify system configurations, install backdoors, or move laterally to other systems within the network.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eLateral Movement (Optional):\u003c/strong\u003e The attacker uses the compromised system as a launching point to attack other systems on the network, potentially exploiting other vulnerabilities or using stolen credentials.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003ePersistence (Optional):\u003c/strong\u003e The attacker establishes persistence on the compromised system to maintain access even after reboots. This may involve installing rootkits, modifying system startup scripts, or creating rogue user accounts.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eDenial of Service/Data Exfiltration/etc.:\u003c/strong\u003e Depending on their objectives, the attacker may use the compromised system to launch denial-of-service attacks against other targets, exfiltrate sensitive data, or cause other damage.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these kernel vulnerabilities can lead to complete system compromise, allowing attackers to execute arbitrary code, escalate privileges, and cause denial of service. The wide range of affected Red Hat Enterprise Linux and CodeReady Linux Builder versions implies a potentially large number of vulnerable systems. This can result in significant data breaches, system downtime, financial losses, and reputational damage for affected organizations.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the patches provided in Red Hat Security Advisories RHSA-2026:10756, RHSA-2026:10996, and RHSA-2026:11313 to remediate the vulnerabilities.\u003c/li\u003e\n\u003cli\u003ePrioritize patching systems based on their criticality and exposure to external networks.\u003c/li\u003e\n\u003cli\u003eMonitor systems for suspicious activity that may indicate exploitation attempts, focusing on unexpected kernel module loads or privilege escalations using process_creation logging.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule detecting suspicious kernel module loading to identify potential rootkit installation attempts.\u003c/li\u003e\n\u003cli\u003eInvestigate any alerts generated by the deployed Sigma rules to determine the scope and impact of potential compromises.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-30T00:00:00Z","date_published":"2026-04-30T00:00:00Z","id":"/briefs/2026-04-redhat-kernel-vulns/","summary":"Multiple vulnerabilities in the Red Hat Linux kernel allow for arbitrary code execution, privilege escalation, and remote denial of service.","title":"Multiple Vulnerabilities in Red Hat Linux Kernel","url":"https://feed.craftedsignal.io/briefs/2026-04-redhat-kernel-vulns/"}],"language":"en","title":"CraftedSignal Threat Feed — Red Hat Enterprise Linux","version":"https://jsonfeed.org/version/1.1"}