205 lines
10 KiB
JSON
205 lines
10 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-2026-63841",
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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": "2026-07-19T07:54:57.015Z",
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"datePublished": "2026-07-19T14:04:36.591Z",
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"dateUpdated": "2026-10-19T20:07:49.903Z"
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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": "2026-08-05T12:36:18.722Z"
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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\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.1 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 742a98e2e81702df8fe1b1eccee5223220a03dc2)"
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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:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - Exploitation requires submitting DRM_IOCTL_AMDGPU_CS on a local /dev/dri/renderD* device node; the vulnerable JPEG v5.0.1 ring path is only reachable through this local ioctl interface, not over the network.\nAC:L - An attacker with render-node access can reliably craft an AMDGPU_CS submission with a FENCE chunk targeting the JPEG ring (ip_type=AMDGPU_HW_IP_VCN_JPEG) on VCN/JPEG 5.0.1 hardware without races or conditions outside their control.\nPR:L - DRM_IOCTL_AMDGPU_CS is gated by DRM_AUTH|DRM_RENDER_ALLOW, requiring only unprivileged local access to a render node (typical for users in the render/video group, browser GPU processes, or cloud GPU tenants), not root in the init namespace.\nUI:N - No victim interaction is required once the attacker has render-node access; exploitation is achieved entirely through crafted ioctl submissions.\nS:U - Impact is confined to the kernel/GPU driver security domain of the compromised context; this is a standard local GPU driver memory-corruption issue, not a VM escape or cross-security-authority boundary bypass.\nC:H - The unsupported 64-bit user fence path causes the JPEG engine to perform a GPU-initiated memory write to attacker-chosen GPU virtual addresses, providing a memory-corruption primitive that can be leveraged for arbitrary kernel memory disclosure in exploit chains.\nI:H - The malformed fence write is a GPU-driven arbitrary memory write to attacker-controlled GPU VA mappings (including GTT-backed system memory), constituting a memory corruption primitive exploitable for code execution or privilege escalation.\nA:H - Triggering unsupported fence operations on the JPEG engine can cause GPU hangs, engine resets, or kernel warnings/oops, resulting in denial of service affecting system availability."
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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/gpu/drm/amd/amdgpu/jpeg_v5_0_1.c"
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],
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"versions": [
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{
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"version": "b8f57b69942b2faa7deee0566cc9306316fe0a74",
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"lessThan": "d0f6ae14c0452be4fc3aa5cf81c74e68b3243050",
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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": "b8f57b69942b2faa7deee0566cc9306316fe0a74",
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"lessThan": "869ce148c0d953570f8307c3e206b47bd5d3be99",
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"status": "affected",
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},
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{
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"lessThan": "2f8e3da71a1b469b6e157aa3972f1448b3157840",
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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/gpu/drm/amd/amdgpu/jpeg_v5_0_1.c"
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],
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"versions": [
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{
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"version": "6.14",
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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": "6.14",
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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": "6.18.33",
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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": "7.0.10",
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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": "6.14",
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"versionEndExcluding": "6.18.33"
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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": "6.14",
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"versionEndExcluding": "7.0.10"
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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": "6.14",
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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/d0f6ae14c0452be4fc3aa5cf81c74e68b3243050"
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},
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{
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"url": "https://git.kernel.org/stable/c/869ce148c0d953570f8307c3e206b47bd5d3be99"
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},
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{
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"url": "https://git.kernel.org/stable/c/2f8e3da71a1b469b6e157aa3972f1448b3157840"
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}
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],
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"title": "drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.1 ring",
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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-2026-63841",
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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": "2026-10-16T15:31:41.227659Z"
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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-20",
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"description": "CWE-20 Improper Input Validation"
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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": "2026-10-19T20:07:49.903Z"
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} |