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CVE-2026-79856 Critical · 9.8 EPSS 0.6%

A buffer overflow vulnerability exists in the PAPI protocol of AOS-8 that could allow an unauthenticated remote…

Hewlett Packard Enterprise (HPE) · ArubaOS (AOS)

Summary

A buffer overflow in the PAPI protocol of ArubaOS (AOS-8), a Hewlett Packard Enterprise product, lets an unauthenticated remote attacker bypass existing authentication controls. Exploitation requires only network access to the affected PAPI service, with no credentials and no user interaction, and can lead to administrative access, changes to system configuration, and access to or manipulation of sensitive data.

Official description · NVD

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.

Breakdown
18.6 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 22 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 6 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag

Other 1

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