{"id":"CVE-2026-76738","aliases":["EUVD-2026-89357","GHSA-qp54-2mv2-22hc"],"status":"published","title":"Authenticated Buffer Overflow Vulnerability in the API Endpoint of HPE Networking Instant On Causes Denial-of-Service","description":"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.","severity":{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00231,"percentile":0.14055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2026-09-29T19:28:58Z","modified":"2026-09-30T15:31:14Z","products":[{"vendor":"hewlett packard enterprise (hpe)","product":"instant on"}],"references":[{"url":"https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us\u0026docLocale=en_US"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76738"},{"url":"https://github.com/advisories/GHSA-qp54-2mv2-22hc"}],"sources":{"cve":[{"id":"CVE-2026-76738","title":"Authenticated Buffer Overflow Vulnerability in the API Endpoint of HPE Networking Instant On Causes Denial-of-Service","description":"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.","status":"published","published":"2026-09-29T19:28:58.533Z","modified":"2026-09-30T12:34:41.976Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T13:46:10.323375Z"}],"euvd":[{"id":"EUVD-2026-89357","description":"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.","status":"published","published":"2026-09-29T19:28:58Z","modified":"2026-09-30T12:34:41Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T17:27:50.183381Z"}],"ghsa":[{"id":"GHSA-qp54-2mv2-22hc","title":"A buffer overflow vulnerability exists in the API endpoint of HPE Networking Instant On that...","description":"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.","status":"published","published":"2026-09-29T21:33:26Z","modified":"2026-09-30T15:31:14Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:12:35.884172Z"}],"nvd":[{"id":"CVE-2026-76738","description":"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.","status":"published","published":"2026-09-29T20:17:26.277Z","modified":"2026-09-30T13:17:20.407Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:12:52.759595Z"}]}}