How severe is CVE-2026-76723?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Vulnerability in Hewlett Packard Enterprise (HPE) Instant On

CVE-2026-76723

Buffer overflow vulnerabilities exist in the affected interface of HPE Networking Instant ON APS that could allow an unauthenticated adjacent attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.

Published 2026-09-29 · last modified 2026-09-29.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Hewlett Packard Enterprise (HPE) Instant On

References

support.hpe.com/hpesc/public/docDisplay

Frequently asked questions

What is CVE-2026-76723?: CVE-2026-76723 is a critical-severity vulnerability in Hewlett Packard Enterprise (HPE) Instant On. CVSS score: 9.6/10. Published 2026-09-29.
How severe is CVE-2026-76723?: Critical severity. CVSS v3 base score is 9.6 out of 10.