CVE-2026-79891 Unauthenticated Buffer Overflow Vulnerability leads to Remote Code Execution in AOS-8
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-79891?
CVE-2026-79891 is a high-severity vulnerability in Hewlett Packard Enterprise (HPE) ArubaOS (AOS), published on 22 Oct 2026.
Official description
A buffer overflow vulnerability exists in the command line interface of AOS-8 that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system leading to complete system compromise.
Weakness: CWE-119
Which versions are affected by CVE-2026-79891?
How do I fix CVE-2026-79891?
No fix has been published for CVE-2026-79891 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-79891 being exploited?
There is no known exploitation of CVE-2026-79891 in the wild and no public exploit code.
Sources
Also known as GHSA-57fx-3867-35c9.