352 lines
18 KiB
JSON
352 lines
18 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-2026-72298",
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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": "2026-08-09T03:40:39.917Z",
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"datePublished": "2026-08-15T05:55:18.529Z",
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"dateUpdated": "2026-10-16T18:55:15.699Z"
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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": "2026-08-17T05:42:31.352Z"
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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\nnet: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()\n\nqrtr_endpoint_post() validates an incoming packet with\n\n\tif (!size || len != ALIGN(size, 4) + hdrlen)\n\t\tgoto err;\n\nwhere size comes from the wire. On 32-bit, size_t is 32 bits and\nALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check\npasses and skb_put_data(skb, data + hdrlen, size) writes past the\nhdrlen-sized skb and oopses the kernel. 64-bit is unaffected.\n\nThis is the 32-bit residual of ad9d24c9429e2 (\"net: qrtr: fix OOB\nRead in qrtr_endpoint_post\"), which fixed only the 64-bit case.\n\nReject any size that cannot fit the buffer before the ALIGN."
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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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.4,
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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:L - qrtr_endpoint_post() is only reachable via local injection paths—write()/io_submit to /dev/qrtr-tun or inbound SMD/MHI frames from the on-SoC modem/coprocessor; AF_QIPCRTR sendmsg never enters this function and QRTR is not an Internet-facing protocol.\nAC:L - The attacker fully controls the wire size field and total packet length; on 32-bit kernels, setting size>=0xfffffffd with len equal to the header length deterministically wraps ALIGN() to bypass validation without races or special victim state.\nPR:N - On Qualcomm deployments the primary path is QRTR_SMD/MHI, where the AP kernel accepts ipcrouter frames from the baseband without Linux credentials or QRTR authentication, so a malicious or compromised modem sender needs no AP privileges.\nUI:N - Exploitation requires delivering a single crafted QRTR packet to qrtr_endpoint_post(); no victim interaction such as mounting filesystems, opening files, or clicking prompts is needed.\nS:U - Impact is kernel heap corruption and denial of service on the application processor; it does not cross a VM/host boundary, IOMMU boundary, or other separate security authority.\nC:H - Bypassing validation causes skb_put_data() to memcpy() ~4GB from a hdrlen-sized input buffer, performing slab out-of-bounds reads of adjacent kernel heap memory that can disclose sensitive data.\nI:H - The same skb_put_data() call performs skb_put() with the wrapped size, writing far beyond the len-sized skb allocation and corrupting adjacent slab objects, enabling potential control-flow hijacking.\nA:H - The oversized skb_put_data() triggers skb_over_panic/kernel oops as documented in the fix commit, reliably crashing affected 32-bit kernels and causing denial of service."
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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/qrtr/af_qrtr.c"
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],
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"versions": [
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{
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"version": "960b08dd36de1e341e3eb43d1c547513e338f4f8",
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"lessThan": "3665e644ea081c4624a1637023b0de3b29f4ae04",
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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": "ad9d24c9429e2159d1e279dc3a83191ccb4daf1d",
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"lessThan": "b609f7f46916c6b05585ca82455077198a23770f",
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"status": "affected",
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},
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{
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"version": "ad9d24c9429e2159d1e279dc3a83191ccb4daf1d",
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"lessThan": "242408b5b763c01288adf3113cbce84378a76e1a",
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"status": "affected",
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},
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{
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"version": "f8111c0d7ed42ede41a3d0d393b104de0730a8a6",
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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": "26b8d10703a9be45d6097946b2b4011f7dd2c56f",
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"status": "affected",
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},
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{
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"version": "19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe",
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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": "5.10.46",
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"lessThan": "5.10.261",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "4.19.196",
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"lessThan": "4.20",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.4.128",
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"lessThan": "5.5",
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"status": "affected",
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},
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{
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"version": "5.12.13",
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"lessThan": "5.13",
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"status": "affected",
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"versionType": "semver"
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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/qrtr/af_qrtr.c"
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],
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"version": "0",
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},
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{
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"version": "5.10.261",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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"version": "5.15.212",
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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": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.145",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"version": "6.12.97",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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},
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{
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"version": "6.18.40",
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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": "7.1.5",
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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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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04"
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"url": "https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab"
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{
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"url": "https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb"
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{
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"url": "https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec"
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},
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{
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"url": "https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b"
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},
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{
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"url": "https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191"
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}
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],
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"title": "net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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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-2026-72298",
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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": "2026-10-16T18:46:01.998827Z"
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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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"dateUpdated": "2026-10-16T18:55:15.699Z"
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}
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}
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]
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}
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} |