{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/red-hat-enterprise-linux-openexr/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":["Red Hat Enterprise Linux (openEXR)"],"_cs_severities":["high"],"_cs_tags":["code-execution","rhel","openEXR","linux"],"_cs_type":"advisory","_cs_vendors":["Red Hat"],"content_html":"\u003cp\u003eA vulnerability exists in Red Hat Enterprise Linux\u0026rsquo;s openEXR component, potentially allowing a remote, anonymous attacker to execute arbitrary program code. This vulnerability could be exploited without prior authentication, meaning any system running the affected software and exposed to network traffic could be at risk. While specific details about the vulnerability are lacking from the original source, the potential impact warrants immediate attention for systems administrators. This poses a significant threat to systems where openEXR is utilized for image processing or related tasks. Defenders should prioritize identifying systems running this software and applying available patches or mitigations.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable Red Hat Enterprise Linux system running openEXR.\u003c/li\u003e\n\u003cli\u003eThe attacker sends a specially crafted input to the openEXR service. The exact method of delivery is unspecified, but could involve network-based protocols.\u003c/li\u003e\n\u003cli\u003eThe vulnerable openEXR component processes the malicious input.\u003c/li\u003e\n\u003cli\u003eThe crafted input triggers a memory corruption or other exploitable condition within the openEXR code.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the exploitable condition to inject and execute arbitrary code.\u003c/li\u003e\n\u003cli\u003eThe attacker\u0026rsquo;s code executes with the privileges of the openEXR process.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the initial foothold to escalate privileges or move laterally within the network.\u003c/li\u003e\n\u003cli\u003eThe attacker achieves their objective, such as data exfiltration or system compromise.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability could lead to arbitrary code execution on affected Red Hat Enterprise Linux systems. This could enable attackers to compromise the confidentiality, integrity, and availability of the system and any data it processes. Depending on the privileges of the openEXR process, the attacker might gain complete control of the system, potentially impacting critical infrastructure or sensitive data. The number of victims is currently unknown, but the broad usage of Red Hat Enterprise Linux makes this a potentially widespread issue.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdentify all systems running Red Hat Enterprise Linux with the openEXR component.\u003c/li\u003e\n\u003cli\u003eMonitor process execution for unusual activity originating from processes associated with openEXR, using the process_creation Sigma rule.\u003c/li\u003e\n\u003cli\u003eApply any available patches or updates from Red Hat to address the underlying vulnerability.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the potential impact of a compromised system.\u003c/li\u003e\n\u003cli\u003eDeploy the file_event Sigma rule to detect suspicious file modifications in directories commonly used by openEXR.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-11T10:18:39Z","date_published":"2026-05-11T10:18:39Z","id":"https://feed.craftedsignal.io/briefs/2026-05-rhel-openexr-code-exec/","summary":"A remote, anonymous attacker can exploit a vulnerability in Red Hat Enterprise Linux (openEXR) to execute arbitrary program code.","title":"Red Hat Enterprise Linux (openEXR) Vulnerability Allows Code Execution","url":"https://feed.craftedsignal.io/briefs/2026-05-rhel-openexr-code-exec/"}],"language":"en","title":"CraftedSignal Threat Feed — Red Hat Enterprise Linux (OpenEXR)","version":"https://jsonfeed.org/version/1.1"}