CVE-2026-23812 Security Boundary Bypass via Routing Node Impersonation

What is CVE-2026-23812?

CVE-2026-23812 is a medium-severity vulnerability in Arubanetworks Arubaos, published on 4 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been identified where an attacker connecting to an access point as a standard wired or wireless client can impersonate a gateway by leveraging an address-based spoofing technique. Successful exploitation enables the redirection of data streams, allowing for the interception or modification of traffic intended for the legitimate network gateway via a Machine-in-the-Middle (MitM) position.

Weakness: CWE-300

Which versions are affected by CVE-2026-23812?

It affects 1 product.

Products include Arubanetworks Arubaos.

How do I fix CVE-2026-23812?

No fix has been published for CVE-2026-23812 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23812 being exploited?

There is no known exploitation of CVE-2026-23812 in the wild and no public exploit code.

Other vulnerabilities in Arubanetworks Arubaos

• CVE-2024-42393 Memory corruption in Hpe Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 Critical 9.8
• CVE-2024-42394 Memory corruption in HPE Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 Critical 9.8
• CVE-2024-42395 Memory corruption in HPE Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10 Critical 9.8
• CVE-2024-31466 Unauthenticated Buffer Overflow Vulnerabilities in CLI Service Accessed by the PAPI Protocol Critical 9.8
• CVE-2024-31467 Unauthenticated Buffer Overflow Vulnerabilities in CLI Service Accessed by the PAPI Protocol Critical 9.8

All Arubanetworks Arubaos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4pwx-crrh-pp6w.