Unauthenticated remote RCE against widely deployed HPE AOS-8 network devices; full device/network compromise risk across enterprises.
CVE-2026-79888
Unauthenticated buffer-overflow RCE in AOS-8 web interface allowing full device compromise
Is CVE-2026-79888 being exploited?
Not confirmed. CVE-2026-79888 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. EPSS currently estimates a 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2026-79888?
CVE-2026-79888 is rated High with a CVSS score of 8.1. 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-2026-79888?
Not known from our data. No patch reference has been recorded for CVE-2026-79888, 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-2026-79888 affect?
CVE-2026-79888 affects HPE AOS-8 network devices (web management interface). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-79888?
Isolate affected devices, restrict web management access, apply vendor patch ASAP when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote buffer overflow enables arbitrary OS command execution and complete device takeover; can pivot into internal network.
Immediate action required
- affected>= 8.13.0.0 and <= 8.13.3.0
- affected>= 8.10.0.0 and <= 8.10.0.23
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.