242 lines
11 KiB
JSON
242 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-2022-49541",
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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": "2025-02-26T02:08:31.589Z",
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"datePublished": "2025-02-26T02:13:56.496Z",
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"dateUpdated": "2026-08-05T08:55:31.111Z"
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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": "2026-08-05T08:55:31.111Z"
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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\ncifs: fix potential double free during failed mount\n\nRHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=2088799"
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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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"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 - The vulnerability is reached through the local mount path (mount syscall → smb3_get_tree → cifs_smb3_do_mount) or via local DFS automount path walking, not by processing unsolicited remote packets.\nAC:L - An attacker can reliably force the failing mount paths (e.g. controlled SMB target or crafted prefixpath causing cifs_get_root/cifs_read_super failure); the double-free fall-through is deterministic once hit, not dependent on uncontrolled conditions.\nPR:L - Although cifs lacks FS_USERNS_MOUNT so a direct mount needs CAP_SYS_ADMIN, unprivileged users can still reach cifs_smb3_do_mount via DFS automount (vfs_submount) on an already-mounted share, and CIFS mounts are commonly invoked by unprivileged users through mount helpers.\nUI:N - The attacker initiates the mount or DFS path access themselves; no separate victim interaction is required.\nS:U - This is standard in-kernel heap corruption within the host kernel's security authority, with no VM/IOMMU/sandbox boundary crossing.\nC:H - A double free of cifs_sb/ctx is heap memory corruption that enables object reuse and arbitrary kernel read primitives.\nI:H - Double free enables heap spraying and corruption of adjacent slab objects, providing write/control-flow hijacking primitives suitable for privilege escalation.\nA:H - The double free produces a use-after-free that can crash the kernel (KASAN UAF/oops), yielding 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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"fs/cifs/cifsfs.c"
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],
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"versions": [
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{
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"version": "d17abdf7566566fc402c31899b353044a7ff3cf4",
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"lessThan": "ce0008a0e410cdd95f0d8cd81b2902ec10a660c4",
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"status": "affected",
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"status": "affected",
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"status": "affected",
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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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"fs/cifs/cifsfs.c"
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],
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"versions": [
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{
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"status": "affected"
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{
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"version": "0",
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"lessThan": "5.11",
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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": "5.15.46",
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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": "5.17.14",
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"lessThanOrEqual": "5.17.*",
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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": "5.18.3",
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"lessThanOrEqual": "5.18.*",
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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": "5.19",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "5.15.46"
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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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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.11",
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"versionEndExcluding": "5.18.3"
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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": "5.11",
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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/ce0008a0e410cdd95f0d8cd81b2902ec10a660c4"
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},
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{
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"url": "https://git.kernel.org/stable/c/9a167fc440e5693c1cdd7f07071e05658bd9d89d"
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},
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{
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"url": "https://git.kernel.org/stable/c/ee71f8f1cd3c8c4a251fd3e8abc89215ae3457cb"
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},
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{
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"url": "https://git.kernel.org/stable/c/8378a51e3f8140f60901fb27208cc7a6e47047b5"
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}
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],
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"title": "cifs: fix potential double free during failed mount",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2022-49541",
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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": "2025-10-01T19:37:38.834933Z"
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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-415",
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"description": "CWE-415 Double 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": "2025-10-01T19:46:40.187Z"
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}
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}
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]
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}
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} |