221 lines
8.9 KiB
JSON
221 lines
8.9 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-2026-58218",
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"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"state": "PUBLISHED",
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"assignerShortName": "redhat",
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"dateReserved": "2026-06-29T18:13:08.160Z",
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"datePublished": "2026-07-30T14:01:13.468Z",
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"dateUpdated": "2026-07-30T17:37:18.466Z"
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},
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"containers": {
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"cna": {
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"title": "Samba: dns signing dos via tkey name cache exhaustion",
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"metrics": [
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{
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"other": {
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"content": {
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"value": "Moderate",
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"namespace": "https://access.redhat.com/security/updates/classification/"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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"version": "3.1"
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},
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"format": "CVSS"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in Samba's internal DNS server where unauthenticated TKEY registration requests were added to the TKEY name cache before being rejected. A remote, unauthenticated attacker can exploit this behavior by sending a large number of TKEY requests with arbitrary names, exhausting the cache and evicting legitimate TKEY entries. This can prevent legitimate TSIG authentication for signed DNS queries, resulting in a denial of service."
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}
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],
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"affected": [
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 10",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:10"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 6",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:6"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 6",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba4",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:6"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 7",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:7"
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]
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 8",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:8"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 9",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "samba",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:9"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenShift Container Platform 4",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "rhcos",
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"defaultStatus": "unknown",
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"cpes": [
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"cpe:/a:redhat:openshift:4"
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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://access.redhat.com/security/cve/CVE-2026-58218",
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502728",
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"name": "RHBZ#2502728",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://bugzilla.samba.org/show_bug.cgi?id=16115"
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},
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{
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"url": "https://www.samba.org/samba/security/CVE-2026-58218.html"
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}
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],
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"datePublic": "2026-07-28T10:00:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-410",
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"description": "Insufficient Resource Pool",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"x_redhatCweChain": "CWE-410: Insufficient Resource Pool",
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"timeline": [
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{
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"lang": "en",
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"time": "2026-07-20T10:58:51.931Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-07-28T10:00:00.000Z",
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"value": "Made public."
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Red Hat would like to thank Andrew Tridgell (Samba Team) and Tristan Madani (Talence Security) for reporting this issue."
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}
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],
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"providerMetadata": {
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"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"shortName": "redhat",
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"dateUpdated": "2026-07-30T14:01:13.468Z"
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},
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"x_generator": {
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"engine": "cvelib 1.8.0"
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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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"timestamp": "2026-07-30T17:34:52.210830Z",
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"id": "CVE-2026-58218",
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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": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-07-30T17:37:18.466Z"
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}
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}
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]
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}
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} |