{"id":"CVE-2024-50302","published":"2024-11-19T02:16:32Z","modified":"2026-10-15T01:19:12Z","title":"Linux Kernel Use of Uninitialized Resource Vulnerability","vendor":"Linux","product":"Kernel","tier":"core","eol":null,"description":{"text":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: zero-initialize the report buffer\n\nSince the report buffer is used by all kinds of drivers in various ways, let's\nzero-initialize it during allocation to make sure that it can't be ever used\nto leak kernel memory via specially-crafted report.","provenance":"source","from":"NVD"},"summary":{"text":"The Linux kernel's HID core, which handles Human Interface Device report processing, allocated its report buffer without zero-initialisation, so memory left over from earlier use could persist in it. A local user with low privileges and no user interaction could craft a specially designed HID report to read this residual kernel memory, potentially disclosing sensitive information.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:15:02Z"},"cvss":{"score":5.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.00811,"percentile":0.56841,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-03-04","dueDate":"2025-03-25","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://lore.kernel.org/linux-cve-announce/2024111908-CVE-2024-50302-f677@gregkh/ ; https://source.android.com/docs/security/bulletin/2025-03-01 ; https://nvd.nist.gov/vuln/detail/CVE-2024-50302","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-11-07","exploitedFirstSeen":"2024-11-07","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2024-11-07"},{"url":"https://securitylab.amnesty.org/latest/2025/02/cellebrite-zero-day-exploit-used-to-target-phone-of-serbian-student-activist/","date":"2025-02-28"},{"url":"https://source.android.com/docs/security/bulletin/2025-03-01","date":"2025-03-03"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-03-04"},{"url":"https://t.me/safebdv/1266","date":"2025-06-17"},{"url":"https://www.enisa.europa.eu/sites/default/files/2025-10/ENISA%20Threat%20Landscape%202025.pdf","date":"2025-10-09"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"},{"url":"https://www.redhat.com/en/resources/product-security-risk-report-2025","date":"2026-04-10"},{"url":"https://syrn.fr/en/blog/darkhotel-no-critical-vulnerability","date":"2026-09-06"}],"evidenceTotal":9,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"}],"references":[{"url":"https://git.kernel.org/stable/c/05ade5d4337867929e7ef664e7ac8e0c734f1aaf","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/177f25d1292c7e16e1199b39c85480f7f8815552","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1884ab3d22536a5c14b17c78c2ce76d1734e8b0b","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3f9e88f2672c4635960570ee9741778d4135ecf5","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/492015e6249fbcd42138b49de3c588d826dd9648","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9d9f5c75c0c7f31766ec27d90f7a6ac673193191","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d7dc68d82ab3fcfc3f65322465da3d7031d4ab46","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e7ea60184e1e88a3c9e437b3265cbb6439aa7e26","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","tags":["Mailing List"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","tags":["Mailing List"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","tags":["Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-50302","tags":["US Government Resource"]}],"techniques":[{"id":"T1091","name":"Replication Through Removable Media","tactics":["initial-access","lateral-movement"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Resource Management","mappingType":"exploitation_technique","evidence":[],"comment":"Attackers can use malicious Human Interface Devices (keyboard, mouse, etc.) to trigger a kernel-level memory leak due to improper initialization and use of uninitialized resources. This leads to the returning of the uninitialized kernel data, which can be collected and exfiltrated.","confidence":"low","confidenceNote":"Windows-only technique on a non-Windows product"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Resource Management","mappingType":"primary_impact","evidence":[],"comment":"Attackers can use malicious Human Interface Devices (keyboard, mouse, etc.) to trigger a kernel-level memory leak due to improper initialization and use of uninitialized resources. This leads to the returning of the uninitialized kernel data, which can be collected and exfiltrated.","confidence":"high"},{"id":"T1011","name":"Exfiltration Over Other Network Medium","tactics":["exfiltration"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Resource Management","mappingType":"secondary_impact","evidence":[],"comment":"Attackers can use malicious Human Interface Devices (keyboard, mouse, etc.) to trigger a kernel-level memory leak due to improper initialization and use of uninitialized resources. This leads to the returning of the uninitialized kernel data, which can be collected and exfiltrated.","confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-44804","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-44804","exploited":true,"exploitedSince":"2025-03-04","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"primary","techniques":["T1005"],"provenance":"source"},{"stage":"secondary","techniques":["T1011"],"provenance":"source"},{"stage":"related","techniques":["T1091"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2024-11-07","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2024-11-19","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50302","provenance":"source"},{"date":"2025-03-04","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-03-04","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-44804","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":105},"priority":{"score":53.2,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 722 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":11.37,"detail":"percentile 0.5684"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":3.85,"detail":"base score 5.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}