{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76738", "assignerOrgId": "eb103674-0d28-4225-80f8-39fb86215de0", "state": "PUBLISHED", "assignerShortName": "hpe", "dateReserved": "2026-08-19T16:13:34.635Z", "datePublished": "2026-09-29T19:28:58.533Z", "dateUpdated": "2026-09-29T19:28:58.533Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "affected", "product": "Instant ON", "vendor": "Hewlett Packard Enterprise (HPE)", "versions": [{"lessThanOrEqual": "3.4.1.0", "status": "affected", "version": "0.0.0.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Internal security research (HPE Networking)."}], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in the API endpoint of HPE Networking Instant On that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service, which recovers without manual intervention."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "providerMetadata": {"orgId": "eb103674-0d28-4225-80f8-39fb86215de0", "shortName": "hpe", "dateUpdated": "2026-09-29T19:28:58.533Z"}, "references": [{"url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US"}], "source": {"advisory": "HPESBNW05150", "discovery": "INTERNAL"}, "title": "Authenticated Buffer Overflow Vulnerability in the API Endpoint of HPE Networking Instant On Causes Denial-of-Service", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "Instant ON", "vendor": "Hewlett Packard Enterprise (HPE)", "versions": [{"lessThanOrEqual": "3.4.1.0", "status": "affected", "version": "0.0.0.0", "versionType": "semver"}]}], "source": "security-alert@hpe.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in the API endpoint of HPE Networking Instant On that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service, which recovers without manual intervention."}], "id": "CVE-2026-76738", "lastModified": "2026-09-29T20:17:26.277", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "security-alert@hpe.com", "type": "Secondary"}]}, "published": "2026-09-29T20:17:26.277", "references": [{"source": "security-alert@hpe.com", "url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US"}], "sourceIdentifier": "security-alert@hpe.com", "vulnStatus": "Received"}

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