233 lines
11 KiB
JSON
233 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-2026-57020",
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"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"state": "PUBLISHED",
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"assignerShortName": "juniper",
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"dateReserved": "2026-06-23T16:27:00.248Z",
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"datePublished": "2026-07-09T21:05:07.368Z",
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"dateUpdated": "2026-07-10T13:29:08.357Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"platforms": [
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"QFX10000 Series"
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],
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"product": "Junos OS",
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"vendor": "Juniper Networks",
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"versions": [
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{
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"lessThan": "23.2R2-S7",
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"status": "affected",
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"version": "0",
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"versionType": "custom"
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},
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{
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"lessThan": "23.4R2-S8",
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"status": "affected",
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"version": "23.4",
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"versionType": "custom"
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},
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{
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"lessThan": "24.2R2-S4",
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"status": "affected",
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"version": "24.2",
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"versionType": "custom"
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},
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{
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"lessThan": "24.4R2-S4",
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"status": "affected",
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"version": "24.4",
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"versionType": "custom"
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}
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]
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}
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],
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"datePublic": "2026-07-08T16:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).<p>\n\nOn all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.<br></p><p><br>This issue affects Junos OS on QFX10000 Series:<br></p><ul><li>all versions before 23.2R2-S7,</li><li>23.4 versions before 23.4R2-S8,</li><li>24.2 versions before 24.2R2-S4,</li><li>24.4 versions before 24.4R2-S4.</li></ul><br>This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.<p></p>"
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}
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],
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"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nOn all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.\n\n\n\nThis issue affects Junos OS on QFX10000 Series:\n\n\n * all versions before 23.2R2-S7,\n * 23.4 versions before 23.4R2-S8,\n * 24.2 versions before 24.2R2-S4,\n * 24.4 versions before 24.4R2-S4.\n\n\n\nThis issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore."
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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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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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}
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],
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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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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"attackComplexity": "LOW",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 6.5,
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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:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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},
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{
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"cvssV4_0": {
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"Automatable": "YES",
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"Recovery": "USER",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "ADJACENT",
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"baseScore": 7.1,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/RE:M",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "MODERATE"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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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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"cweId": "CWE-754",
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"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
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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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"providerMetadata": {
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"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"shortName": "juniper",
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"dateUpdated": "2026-07-09T21:05:07.368Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://supportportal.juniper.net/JSA110080"
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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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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S7, 23.4R2-S8, 24.2R2-S4, 24.4R2-S4."
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}
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],
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"value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S7, 23.4R2-S8, 24.2R2-S4, 24.4R2-S4."
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}
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],
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"source": {
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"advisory": "JSA110080",
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"defect": [
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"1916949"
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],
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"discovery": "USER"
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},
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"title": "Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood",
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"workarounds": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "There are no known workarounds for this issue."
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}
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],
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"value": "There are no known workarounds for this issue."
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}
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],
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"x_generator": {
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"engine": "Vulnogram 0.1.0-dev"
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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": "2026-07-10T13:28:54.914596Z",
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"id": "CVE-2026-57020",
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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": "2026-07-10T13:29:08.357Z"
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}
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}
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]
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}
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} |