CVE-2026-79856
ArubaOS (AOS): Unauthenticated Buffer Overflow Vulnerability leads to Authentication Bypass in AOS-8
Hewlett Packard Enterprise (HPE) ArubaOS (AOS)
CVSS
9.8CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.36%Chance of exploitation activity in the next 30 days, higher than 28% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
What fixes it
No source in this snapshot names a fixed version.
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.
Text from CVE List
Affected versions 2
- ArubaOS (AOS)affected: 8.13.0.0 through 8.13.3.0CVE List
- ArubaOS (AOS)affected: 8.10.0.0 through 8.10.0.23CVE List