268 lines
13 KiB
JSON
268 lines
13 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-2026-53232",
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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": "2026-06-09T07:44:35.393Z",
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"datePublished": "2026-06-25T08:39:30.527Z",
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"dateUpdated": "2026-10-30T12:26:48.332Z"
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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": "2026-10-30T12:26:48.332Z"
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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: phy: clean the sfp upstream if phy probing fails\n\nSashiko reported that we don't call sfp_bus_del_upstream() in the probe\nfailure path, so let's add it, otherwise the sfp-bus is left with a\ndangling 'upstream' field, that may be used later on during SFP events.\n\nThis issue existed before the generic phylib sfp support, back when\ndrivers were calling phy_sfp_probe themselves."
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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 - The stale upstream pointer is dereferenced from SFP cage events such as module presence and LOS/link changes, which can be driven by a directly connected SFP link partner. It is not reachable through ordinary routed network packets or an unprivileged syscall path.\nAC:L - Once an affected PHY/SFP configuration has hit the failed-probe state, later SFP events reliably call the stale upstream callbacks. There is no attacker-won race or complex timing requirement in the event path.\nPR:N - An adjacent physical/link-layer attacker does not need kernel privileges or authentication to trigger SFP signal events. No CAP_NET_ADMIN or user-namespace route is required for that trigger path.\nUI:N - After the system is in the vulnerable failed-probe state, exploitation is triggered by SFP events without a victim user performing an action. The attacker can induce the relevant link/module event directly.\nS:U - The affected code and resulting impact are within the Linux kernel networking/PHY security authority. There is no VM, IOMMU, or separate-scope boundary crossing.\nC:H - The bug leaves a dangling `phy_device` upstream pointer that later SFP callbacks dereference, creating a kernel use-after-free style condition. Kernel UAF conditions are treated as capable of exposing arbitrary kernel memory.\nI:H - The stale pointer callbacks read and write fields through the freed or invalid `phy_device` and may reach attacker-influenced object contents after reuse. Kernel UAF memory corruption is treated as potentially enabling arbitrary write or code execution.\nA:H - Even without full exploitation, dereferencing the dangling upstream pointer during SFP events can crash or oops the kernel. Kernel crashes are high availability impact."
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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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"drivers/net/phy/phy_device.c"
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],
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"versions": [
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{
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"version": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "18c7c311323b19a353c3042180982e0ce5fa7e5f",
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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": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "12fb84dc4dc8eb47ebe2b27f7de6255a4a205e1b",
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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": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "9326b654f90a09eadeb796c82801a5609d57f0c8",
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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": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "3a254779c169954fe23328a1db51f67be374f913",
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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": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "0b27701ce93161d7bbf4b25fa20ca59963b0e20c",
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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": "298e54fa810e027f1b0800d789eb862592721f08",
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"lessThan": "48774e87bbaa0056819d4b52301e4692e50e3252",
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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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"drivers/net/phy/phy_device.c"
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],
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"versions": [
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{
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"version": "5.5",
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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": "5.5",
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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": "6.1.191",
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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": "6.6.143",
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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": "6.12.94",
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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": "6.18.36",
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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": "7.0.13",
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"lessThanOrEqual": "7.0.*",
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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",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "6.1.191"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "6.6.143"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "7.0.13"
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "7.1"
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}
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]
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}
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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/18c7c311323b19a353c3042180982e0ce5fa7e5f"
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},
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{
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"url": "https://git.kernel.org/stable/c/12fb84dc4dc8eb47ebe2b27f7de6255a4a205e1b"
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},
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{
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"url": "https://git.kernel.org/stable/c/9326b654f90a09eadeb796c82801a5609d57f0c8"
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},
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{
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"url": "https://git.kernel.org/stable/c/3a254779c169954fe23328a1db51f67be374f913"
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},
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{
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"url": "https://git.kernel.org/stable/c/0b27701ce93161d7bbf4b25fa20ca59963b0e20c"
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},
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{
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"url": "https://git.kernel.org/stable/c/48774e87bbaa0056819d4b52301e4692e50e3252"
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}
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],
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"title": "net: phy: clean the sfp upstream if phy probing fails",
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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-2026-53232",
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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": "2026-10-16T15:27:27.558655Z"
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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-416",
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"description": "CWE-416 Use After Free"
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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": "2026-10-19T19:57:30.712Z"
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}
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}
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]
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}
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} |