{ "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" } } } }