241 lines
9.9 KiB
JSON
241 lines
9.9 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-2026-3591",
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"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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"state": "PUBLISHED",
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"assignerShortName": "isc",
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"dateReserved": "2026-03-05T12:50:58.915Z",
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"datePublished": "2026-03-25T13:34:14.202Z",
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"dateUpdated": "2026-03-25T14:13:01.659Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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"shortName": "isc",
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"dateUpdated": "2026-03-25T13:34:14.202Z"
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},
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"title": "A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass",
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"datePublic": "2026-03-25T00:00:00.000Z",
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"affected": [
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{
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"vendor": "ISC",
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"product": "BIND 9",
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"versions": [
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{
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"version": "9.20.0",
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"lessThanOrEqual": "9.20.20",
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"status": "affected",
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"versionType": "custom"
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},
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{
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"version": "9.21.0",
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"lessThanOrEqual": "9.21.19",
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"status": "affected",
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"versionType": "custom"
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},
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{
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"version": "9.20.9-S1",
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"lessThanOrEqual": "9.20.20-S1",
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"status": "affected",
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"versionType": "custom"
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},
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{
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"version": "9.18.0",
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"lessThanOrEqual": "9.18.46",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "9.18.11-S1",
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"lessThanOrEqual": "9.18.46-S1",
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"status": "unaffected",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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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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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "9.20.0",
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"versionEndIncluding": "9.20.20"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "9.21.0",
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"versionEndIncluding": "9.21.19"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "9.20.9-S1",
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"versionEndIncluding": "9.20.20-S1"
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},
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{
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"vulnerable": false,
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"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "9.18.0",
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"versionEndIncluding": "9.18.46"
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},
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{
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"vulnerable": false,
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"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "9.18.11-S1",
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"versionEndIncluding": "9.18.46-S1"
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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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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"availabilityImpact": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
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"baseScore": 5.4,
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"baseSeverity": "MEDIUM"
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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-562",
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"description": "CWE-562 Return of Stack Variable Address"
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},
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-305",
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"description": "CWE-305 Authentication Bypass by Primary Weakness"
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}
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]
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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 use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure.\nThis issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.\nBIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected."
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}
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],
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"impacts": [
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "An attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access."
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}
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]
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "No workarounds known."
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}
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],
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"exploits": [
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{
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"lang": "en",
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"value": "We are not aware of any active exploits."
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.20.21, 9.21.20, or 9.20.21-S1."
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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": "ISC would like to thank Mcsky23 for bringing this vulnerability to our attention."
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}
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],
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"references": [
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{
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"url": "https://kb.isc.org/docs/cve-2026-3591",
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"name": "CVE-2026-3591",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://downloads.isc.org/isc/bind9/9.20.21",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://downloads.isc.org/isc/bind9/9.21.20",
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"tags": [
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"patch"
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]
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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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": "2026-03-25T14:12:43.295485Z",
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"id": "CVE-2026-3591",
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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": "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": "2026-03-25T14:13:01.659Z"
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}
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}
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]
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}
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} |