by Kastro
Paper/Archive/CVE-2026-79856

CVE-2026-79856

Hewlett Packard Enterprise (HPE) ArubaOS (AOS) — Unauthenticated Buffer Overflow Vulnerability leads to Authentication Bypass in AOS-8

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 49.1.491 × 209.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

A buffer overflow vulnerability exists in the PAPI protocol of AOS-8 that could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative access, modify system configurations, and access or manipulate sensitive data.

Affected

ProductAffectedFixed inSource
ArubaOS (AOS)8.13.0.0 – 8.13.3.0–CNA
ArubaOS (AOS)8.10.0.0 – 8.10.0.23–CNA

Scores by source

hpe (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsupport.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05162en_us&docLocale=en_US