Privilege escalation to admin on HPE AOS-S (enterprise network OS); can enable network takeover and widespread disruption across organizations.
CVE-2026-76748
Authenticated read-only user can escalate to admin on AOS-S via API.
Is CVE-2026-76748 being exploited?
Not confirmed. CVE-2026-76748 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-76748?
CVE-2026-76748 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-76748?
Not known from our data. No patch reference has been recorded for CVE-2026-76748, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-76748 affect?
CVE-2026-76748 affects HPE AOS-S (ArubaOS-Switch), Managed Aruba switches running AOS-S. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-76748?
Apply vendor fixes/mitigations ASAP; restrict API access and audit admin accounts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated read-only users can gain full administrative control via the AOS-S API, allowing config changes, network takeover, and persistent access.
Immediate action required
- affected>= 16.11.0000 and <= 16.11.0031
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.