310 lines
16 KiB
JSON
310 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-68125",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-30T09:28:09.369Z",
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"datePublished": "2026-08-10T11:58:46.198Z",
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"dateUpdated": "2026-10-19T20:58:52.090Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-19T16:29:39.507Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: llsec: reject frames shorter than the authentication tag\n\nllsec_do_decrypt_auth() computes the associated-data length for the\nAEAD request as\n\n\tassoclen += datalen - authlen;\n\nwhere datalen is the number of bytes after the MAC header and authlen\n(4, 8 or 16) is the length of the authentication tag. Nothing verifies\nthat the frame actually carries at least authlen payload bytes. A\nsecured frame whose payload is shorter than the tag makes\ndatalen - authlen negative; assoclen is then passed to\naead_request_set_ad() as an unsigned value close to 4 GiB, so\ncrypto_aead_decrypt() walks far off the end of the scatterlist that\nonly spans the real frame.\n\nThe frame is fully attacker-controlled and reaches this path from any\nIEEE 802.15.4 peer in radio range. Reject frames whose payload is\nshorter than the authentication tag before the subtraction.\n\nDynamically reproduced on a KASAN kernel as a general-protection-fault\nin the AEAD scatterwalk, and the fix confirmed."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:A - Exploitation requires sending crafted IEEE 802.15.4 frames over the WPAN radio interface; any peer within RF range can reach mac802154 receive/decrypt without IP routing or local shell access, matching Adjacent wireless attack guidance like Bluetooth.\nAC:L - The attacker fully controls frame length and security header fields; once LLSEC is enabled on the victim, a single undersized MIC-only secured frame reliably triggers the assoclen underflow and was dynamically reproduced as a KASAN GPF.\nPR:N - No Linux credentials or capabilities are required on the target; exploitation is performed by an over-the-air 802.15.4 peer spoofing a known PAN device/key/frame counter, not via local syscalls, ioctl, or netlink.\nUI:N - No victim user action is needed beyond normal operation of an LLSEC-enabled 802.15.4 interface; the malicious frame is processed automatically in the softirq receive path before delivery to userspace.\nS:U - Impact is confined to kernel memory and availability on the attacked host's WPAN stack; it does not cross a VM, container, or IOMMU security boundary into a separate authority.\nC:H - The wrapped assoclen makes crypto_aead_decrypt() scatterwalk read gigabytes beyond the skb-backed scatterlist, causing out-of-bounds kernel memory reads that can disclose adjacent heap or slab data and enable further exploitation primitives.\nI:H - Kernel memory corruption in the AEAD decrypt scatterwalk path can be leveraged for control-flow hijack or arbitrary write primitives beyond the demonstrated crash, consistent with high integrity impact for exploitable OOB access in crypto handlers.\nA:H - The bug was reproduced on a KASAN kernel as a general-protection fault in the AEAD scatterwalk, and repeated malicious frames can panic or hang the kernel on LLSEC-enabled coordinators, gateways, and IoT border routers."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/mac802154/llsec.c"
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],
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"versions": [
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{
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"version": "4c14a2fb5d143e4ed94143be2b8c1961b47df9af",
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"lessThan": "f27ce82eb04960465df71634b196a48a4ecafd50",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4c14a2fb5d143e4ed94143be2b8c1961b47df9af",
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"lessThan": "2d6b42a61373144298070668fddf06efe79cf2ff",
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"status": "affected",
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},
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{
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"lessThan": "ec7e62d77193131227df49d654d118fdf5a59892",
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"status": "affected",
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"status": "affected",
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},
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{
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"lessThan": "de80808f37d99c6dc67bb6f97eea00c8f57a8821",
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"status": "affected",
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},
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"version": "4c14a2fb5d143e4ed94143be2b8c1961b47df9af",
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"lessThan": "f20dedce0429b293d4bad604e0d3f65d8ac96c83",
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"status": "affected",
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"versionType": "git"
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{
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"version": "4c14a2fb5d143e4ed94143be2b8c1961b47df9af",
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"lessThan": "e09e0301d616c1ef38a5e64e8e4326fd39df13cc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4c14a2fb5d143e4ed94143be2b8c1961b47df9af",
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"lessThan": "fd3a3f28ed60c6af4b2a39933b151d6b27842c3b",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/mac802154/llsec.c"
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],
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"versions": [
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{
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"version": "3.16",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.16",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.265",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.216",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.183",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.148",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.101",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.42",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.16",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f27ce82eb04960465df71634b196a48a4ecafd50"
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},
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{
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"url": "https://git.kernel.org/stable/c/2d6b42a61373144298070668fddf06efe79cf2ff"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec7e62d77193131227df49d654d118fdf5a59892"
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},
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{
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"url": "https://git.kernel.org/stable/c/5bbf0cd9b6a7076af86c75e87e180099be2e11ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/de80808f37d99c6dc67bb6f97eea00c8f57a8821"
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},
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{
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"url": "https://git.kernel.org/stable/c/f20dedce0429b293d4bad604e0d3f65d8ac96c83"
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},
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{
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"url": "https://git.kernel.org/stable/c/e09e0301d616c1ef38a5e64e8e4326fd39df13cc"
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},
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{
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"url": "https://git.kernel.org/stable/c/fd3a3f28ed60c6af4b2a39933b151d6b27842c3b"
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}
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],
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"title": "mac802154: llsec: reject frames shorter than the authentication tag",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-68125",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:44:15.964200Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-190",
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"description": "CWE-190 Integer Overflow or Wraparound"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T20:58:52.090Z"
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}
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}
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]
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}
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} |