{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64412", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.786Z", "datePublished": "2026-07-25T08:50:52.946Z", "dateUpdated": "2026-08-05T12:41:46.976Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:41:46.976Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: module names must be null-terminated\n\nWe need to explicitly check the length, else we may pass non-null\nterminated string to request_module()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable ebtables replacement path is reached through a local setsockopt syscall, not through received network traffic.\nAC:L - The attacker controls the complete table blob, including offsets, allocation size, and unterminated match name; no race or uncontrollable condition is required.\nPR:L - The path requires CAP_NET_ADMIN in the socket network namespace, which an unprivileged user can obtain by creating user and network namespaces on deployments permitting unprivileged user namespaces.\nUI:N - Exploitation requires no action by another user after the attacker invokes setsockopt with the crafted table.\nS:U - The vulnerability affects the host kernel within the same security authority and does not cross a virtualization or IOMMU boundary.\nC:H - The unbounded %s traversal constitutes an out-of-bounds kernel read that can continue beyond the match-name field and table allocation; under the required higher-severity treatment for unbounded OOB reads, confidentiality impact is High.\nI:N - The vulnerable operation only reads while formatting a module name; there is no demonstrated out-of-bounds write, use-after-free, or control-flow modification primitive.\nA:H - 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{"bugzilla": {"description": "kernel: netfilter: ebtables: module names must be null-terminated", "id": "2507099", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507099"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's netfilter ebtables component. A local attacker could exploit this vulnerability by providing a specially crafted module name that is not properly null-terminated. This improper string handling could lead to a buffer over-read when the `request_module()` function processes the string. Successful exploitation could result in information disclosure, allowing an attacker to read sensitive kernel memory, or a denial of service (DoS), causing the system to crash."], "name": "CVE-2026-64412", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64412\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64412\nhttps://lore.kernel.org/linux-cve-announce/2026072532-CVE-2026-64412-2163@gregkh/T"], "threat_severity": "Moderate"}

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