Unauthenticated Buffer Overflow Vulnerability leads to Denial-of-Service in AOS-8

published 2026-10-22 17 d ago modified 2026-11-02 7 d ago also EUVD-2026-108386

cvss: 8.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

An unauthenticated buffer overflow vulnerability exists in the PAPI protocol of AOS-8. Successful exploitation could allow an unauthenticated remote attacker to disrupt the availability of the affected service on the controller, with a limited impact to its integrity.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 7 d ago (2026-11-02)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected products

Hewlett Packard Enterprise (HPE) ArubaOS (AOS)

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

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

Sources

CVE List CVE-2026-79886
NVD CVE-2026-79886

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Summary