221 lines
11 KiB
JSON
221 lines
11 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-2026-64522",
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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": "2026-07-19T15:36:31.794Z",
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"datePublished": "2026-07-25T09:14:47.404Z",
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"dateUpdated": "2026-10-19T20:48:37.735Z"
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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": "2026-08-05T12:42:35.590Z"
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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/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA\n\nmlx5e_xfrm_add_state() handles acquire-flow temporary SAs by allocating\nsoftware state and skipping hardware offload setup.\n\nThat path jumps to the common success label before taking the eswitch mode\nblock. After tunnel-mode validation was moved earlier, the common success\nlabel unconditionally calls mlx5_eswitch_unblock_mode(). For acquire SAs,\nthis decrements esw->offloads.num_block_mode without a matching increment.\n\nReturn directly after installing the acquire SA offload handle, so only the\npaths that successfully called mlx5_eswitch_block_mode() call the matching\nunblock."
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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:N/AC:L/PR:N/UI:R/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:N - A remote TCP SYN can cause the kernel to route a SYN-ACK through an administrator-configured outbound mlx5 IPsec policy, reaching xfrm_state_find() and the vulnerable acquire-SA callback.\nAC:L - Once the affected packet-offload policy is deployed without a matching SA, the first matching flow deterministically performs the unmatched decrement; no race must be won.\nPR:N - The remote peer needs no credentials or capabilities; configuring the mlx5 IPsec policy is a deployment prerequisite, not an attacker privilege.\nUI:R - The highest-impact stale-object path requires an administrator to request an eswitch mode transition after the attacker has cancelled the live mode-block reference.\nS:U - The resulting corruption affects the same host kernel and mlx5 device security authority, without crossing a VM, IOMMU, or sandbox boundary.\nC:H - The incorrectly permitted mode transition frees mlx5 IPsec structures while XFRM policies retain references to them, creating subsequent use-after-free callbacks capable of exposing kernel memory.\nI:H - The stale policy and flow-table references can be reclaimed and attacker-influenced, making the resulting kernel use-after-free potentially exploitable for arbitrary writes or control-flow hijacking.\nA:H - Mode-transition teardown or later automatic policy expiration can dereference freed IPsec and flow-rule objects, causing a kernel warning, oops, or panic."
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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/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"
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],
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"versions": [
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{
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"version": "22239eb258bc1e6ccdb2d3502fce1cc2b2a88386",
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"lessThan": "b5bd4249e430f5963d559708ee96a671716d2400",
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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": "22239eb258bc1e6ccdb2d3502fce1cc2b2a88386",
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"lessThan": "ecafd8284e527666e83261e6e57a7c7341d591cb",
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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": "22239eb258bc1e6ccdb2d3502fce1cc2b2a88386",
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"lessThan": "abe003b33223ff33552f291644bf35d9c2f992fb",
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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": "993c4ba71596c30418ba5a0ddcf4f9c2f431466a",
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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": "6.17.4",
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"lessThan": "6.18",
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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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"drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"
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],
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"versions": [
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{
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"version": "6.18",
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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": "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": "6.18.34",
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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": "7.0.11",
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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": "6.18",
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"versionEndExcluding": "6.18.34"
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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": "6.18",
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"versionEndExcluding": "7.0.11"
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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": "6.18",
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"versionEndExcluding": "7.1"
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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": "6.17.4"
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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/b5bd4249e430f5963d559708ee96a671716d2400"
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},
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{
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"url": "https://git.kernel.org/stable/c/ecafd8284e527666e83261e6e57a7c7341d591cb"
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},
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{
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"url": "https://git.kernel.org/stable/c/abe003b33223ff33552f291644bf35d9c2f992fb"
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}
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],
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"title": "net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA",
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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-2026-64522",
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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": "2026-10-16T15:41:33.468596Z"
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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": "2026-10-19T20:48:37.735Z"
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}
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}
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]
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}
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} |