203 lines
10 KiB
JSON
203 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-2026-8169",
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"assignerOrgId": "1c053176-eef3-4d6a-ae0b-24728c86587b",
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"state": "PUBLISHED",
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"assignerShortName": "ExtremeNetworks",
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"dateReserved": "2026-05-08T12:59:08.619Z",
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"datePublished": "2026-07-20T17:33:05.699Z",
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"dateUpdated": "2026-07-20T19:20:47.552Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "1c053176-eef3-4d6a-ae0b-24728c86587b",
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"shortName": "ExtremeNetworks",
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"dateUpdated": "2026-07-20T19:20:47.552Z"
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},
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"title": "ExtremeXOS Debug-Mode Privilege Escalation via Weak PRNG",
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"datePublic": "2026-07-20T17:27:00.000Z",
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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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"cweId": "CWE-338",
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"description": "CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
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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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"affected": [
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{
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"vendor": "Extreme Networks",
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"product": "Switch Engine (EXOS)",
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"platforms": [
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"Switch Engine"
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],
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "31.7.4",
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"versionType": "custom"
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},
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{
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"status": "affected",
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"version": "32.0.0",
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"lessThan": "32.7.4.15",
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"versionType": "custom"
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},
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{
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"status": "affected",
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"version": "33.0.0",
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"lessThan": "33.1.100",
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"versionType": "custom"
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},
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{
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"status": "affected",
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"version": "33.2.0",
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"lessThan": "33.7.1",
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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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"descriptions": [
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{
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"lang": "en",
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"value": "ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.\n\n\n\nExtreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.</p><p>Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.</p>"
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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://www.extremenetworks.com/support/policies/product-security",
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"name": "Extreme Networks Product Security",
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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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"metrics": [
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 8.7,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
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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": "Where immediate upgrade is not feasible, customers should: (1) restrict CLI access to trusted administrators only; (2) enforce strong authentication and rotate any default credentials; (3) restrict physical access to serial console ports; and (4) monitor device logs for unexpected debug-mode activation attempts.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Where immediate upgrade is not feasible, customers should: (1) restrict CLI access to trusted administrators only; (2) enforce strong authentication and rotate any default credentials; (3) restrict physical access to serial console ports; and (4) monitor device logs for unexpected debug-mode activation attempts.</p>"
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}
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]
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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": "Extreme Networks has released fixed versions of Switch Engine (EXOS) that address this vulnerability. Customers should upgrade to one of the following releases or later: 31.7.4, 32.7.4.15, 33.1.100, or 33.7.1.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Extreme Networks has released fixed versions of Switch Engine (EXOS) that address this vulnerability. Customers should upgrade to one of the following releases or later: 31.7.4, 32.7.4.15, 33.1.100, or 33.7.1.</p>"
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}
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]
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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": "Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.",
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"type": "finder"
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}
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],
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"source": {
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"advisory": "SA-2026-087",
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"discovery": "EXTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.2"
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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": "2026-07-20T18:26:07.254983Z",
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"id": "CVE-2026-8169",
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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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"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": "2026-07-20T18:26:18.638Z"
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}
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}
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]
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}
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} |