CVE-2026-79856
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductArubaOS (AOS)
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Hewlett Packard Enterprise (HPE) ArubaOS (AOS) | 8.13.0.0 ≤ v ≤ 8.13.3.0, 8.10.0.0 ≤ v ≤ 8.10.0.23 | — |
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