{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-6549", "assignerOrgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "state": "PUBLISHED", "assignerShortName": "Citrix", "dateReserved": "2023-12-06T11:01:58.256Z", "datePublished": "2024-01-17T20:15:53.345Z", "dateUpdated": "2025-10-21T23:05:27.936Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "NetScaler ADC\u202f", "vendor": "Cloud Software Group", "versions": [{"lessThan": "12.35", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThan": "51.15", "status": "affected", "version": "13.1", "versionType": "patch"}, {"lessThan": "92.21", "status": "affected", "version": "13.0 ", "versionType": "patch"}, {"lessThan": "37.176", "status": "affected", "version": " 13.1-FIPS", "versionType": "patch"}, {"lessThan": "55.302", "status": "affected", "version": "12.1-FIPS", "versionType": "patch"}, {"lessThan": "55.302", "status": "affected", "version": "12.1-NDcPP", "versionType": "patch"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\"><b><span style=\"background-color: rgb(255, 255, 255);\">Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and&nbsp;</span></b><span style=\"background-color: rgb(255, 255, 255);\"><b>Out-Of-Bounds Memory Read</b></span></span><br>"}], "value": "Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and\u00a0Out-Of-Bounds Memory Read\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "shortName": "Citrix", "dateUpdated": "2024-05-10T17:29:28.138Z"}, "references": [{"url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:13.934Z"}, "title": "CVE Program Container", "references": [{"url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6549", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-01-31T05:00:20.477654Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2024-01-17", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549", "tags": ["government-resource"]}], "timeline": [{"time": "2024-01-17T00:00:00+00:00", "lang": "en", "value": "CVE-2023-6549 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:05:27.936Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-6549", "assignerOrgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "state": "PUBLISHED", "assignerShortName": "Citrix", "dateReserved": "2023-12-06T11:01:58.256Z", "datePublished": "2024-01-17T20:15:53.345Z", "dateUpdated": "2025-10-21T19:45:16.531Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "NetScaler ADC\u202f", "vendor": "Cloud Software Group", "versions": [{"lessThan": "12.35", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThan": "51.15", "status": "affected", "version": "13.1", "versionType": "patch"}, {"lessThan": "92.21", "status": "affected", "version": "13.0 ", "versionType": "patch"}, {"lessThan": "37.176", "status": "affected", "version": " 13.1-FIPS", "versionType": "patch"}, {"lessThan": "55.302", "status": "affected", "version": "12.1-FIPS", "versionType": "patch"}, {"lessThan": "55.302", "status": "affected", "version": "12.1-NDcPP", "versionType": "patch"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\"><b><span style=\"background-color: rgb(255, 255, 255);\">Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and&nbsp;</span></b><span style=\"background-color: rgb(255, 255, 255);\"><b>Out-Of-Bounds Memory Read</b></span></span><br>"}], "value": "Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and\u00a0Out-Of-Bounds Memory Read\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "shortName": "Citrix", "dateUpdated": "2024-05-10T17:29:28.138Z"}, "references": [{"url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:13.934Z"}, "title": "CVE Program Container", "references": [{"url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6549", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-01-31T05:00:20.477654Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2024-01-17", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549", "tags": ["government-resource"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-03T16:25:24.879Z"}, "timeline": [{"time": "2024-01-17T00:00:00+00:00", "lang": "en", "value": "CVE-2023-6549 added to CISA KEV"}], "title": "CISA ADP Vulnrichment"}]}}

{"cisaActionDue": "2024-02-07", "cisaExploitAdd": "2024-01-17", "cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "matchCriteriaId": "E5672003-8E6B-4316-B5C9-FE436080ADD1", "versionEndExcluding": "12.1-55.302", "versionStartIncluding": "12.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*", "matchCriteriaId": "D1A11ABD-4F45-4BA9-B30B-F1D8A612CC15", "versionEndExcluding": "12.1-55.302", "versionStartIncluding": "12.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "matchCriteriaId": "FC0A5AAC-62DD-416A-A801-A7A95D5EF73C", "versionEndExcluding": "13.0-92.21", "versionStartIncluding": "13.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "matchCriteriaId": "8C8A6B95-8338-4EE7-A6EC-7D84AEDC4AF3", "versionEndExcluding": "13.1-37.176", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "matchCriteriaId": "3CF77D9D-FC89-493D-B97D-F9699D182F54", "versionEndExcluding": "13.1-51.15", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "matchCriteriaId": "62CD82CF-9013-4E54-B175-19B804A351AA", "versionEndExcluding": "14.1-12.35", "versionStartIncluding": "14.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "matchCriteriaId": "68E1F810-ABCD-40A7-A8C1-4E8727799C7C", "versionEndExcluding": "13.0-92.21", "versionStartIncluding": "13.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "matchCriteriaId": "E870C309-D5CD-4181-9DEB-4833DE2EAEB7", "versionEndExcluding": "13.1-51.15", "versionStartIncluding": "13.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "matchCriteriaId": "2836707F-A36F-479E-BFDC-CF55AEFC37EE", "versionEndExcluding": "14.1-12.35", "versionStartIncluding": "14.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and\u00a0Out-Of-Bounds Memory Read\n"}, {"lang": "es", "value": "La restricci\u00f3n inadecuada de las operaciones dentro de los l\u00edmites de un b\u00fafer de memoria en NetScaler ADC y NetScaler Gateway permite una denegaci\u00f3n de servicio no autenticada"}], "id": "CVE-2023-6549", "lastModified": "2025-10-24T13:42:40.103", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "secure@citrix.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-01-17T21:15:11.690", "references": [{"source": "secure@citrix.com", "tags": ["Vendor Advisory"], "url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549"}], "sourceIdentifier": "secure@citrix.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "secure@citrix.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}