{"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": "2026-08-17T04:55:11.246Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:55:11.246Z"}, "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 - A page-aligned nonzero table blob can make vsnprintf scan into the vmalloc guard page, causing a kernel oops or panic, and the attacker can repeat the trigger."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/netfilter/ebtables.c"], "versions": [{"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "43dd2332b8a27b3ac5108791680cade654ab0f96", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "5777c8f1c3610786d8482b8f620f40fccaf1542b", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "0ddca0f90fa3395111d078ae4399615cf3ea94aa", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "d2367d99f2455f373996d9ddbe833dbe9f942213", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "da32e78bbb187ed7b137e0007034185570a3a172", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "13a5f532e3a4fc75c33060a026def1572c208643", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8", "status": "affected", "versionType": "git"}, {"version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "lessThan": "084d23f818321390509e9738a0b08bbf46df6425", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/netfilter/ebtables.c"], "versions": [{"version": "4.6", "status": "affected"}, {"version": "0", "lessThan": "4.6", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.12.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/43dd2332b8a27b3ac5108791680cade654ab0f96"}, {"url": "https://git.kernel.org/stable/c/5777c8f1c3610786d8482b8f620f40fccaf1542b"}, {"url": "https://git.kernel.org/stable/c/0ddca0f90fa3395111d078ae4399615cf3ea94aa"}, {"url": "https://git.kernel.org/stable/c/d2367d99f2455f373996d9ddbe833dbe9f942213"}, {"url": "https://git.kernel.org/stable/c/da32e78bbb187ed7b137e0007034185570a3a172"}, {"url": "https://git.kernel.org/stable/c/13a5f532e3a4fc75c33060a026def1572c208643"}, {"url": "https://git.kernel.org/stable/c/7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8"}, {"url": "https://git.kernel.org/stable/c/084d23f818321390509e9738a0b08bbf46df6425"}], "title": "netfilter: ebtables: module names must be null-terminated", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bridge/netfilter/ebtables.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "43dd2332b8a27b3ac5108791680cade654ab0f96", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "5777c8f1c3610786d8482b8f620f40fccaf1542b", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "0ddca0f90fa3395111d078ae4399615cf3ea94aa", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "d2367d99f2455f373996d9ddbe833dbe9f942213", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "da32e78bbb187ed7b137e0007034185570a3a172", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "13a5f532e3a4fc75c33060a026def1572c208643", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}, {"lessThan": "084d23f818321390509e9738a0b08bbf46df6425", "status": "affected", "version": "bcf4934288402be3464110109a4dae3bd6fb3e93", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bridge/netfilter/ebtables.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.6"}, {"lessThan": "4.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.96", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.39", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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()."}], "id": "CVE-2026-64412", "lastModified": "2026-08-17T05:17:44.917", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-07-25T10:17:24.990", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/084d23f818321390509e9738a0b08bbf46df6425"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ddca0f90fa3395111d078ae4399615cf3ea94aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13a5f532e3a4fc75c33060a026def1572c208643"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/43dd2332b8a27b3ac5108791680cade654ab0f96"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5777c8f1c3610786d8482b8f620f40fccaf1542b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7b217960e88b5d2d1e8cdcbcaf3bdf6fe199a0c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2367d99f2455f373996d9ddbe833dbe9f942213"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/da32e78bbb187ed7b137e0007034185570a3a172"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"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"}