CVE-2026-23811 — Unauthorized Bi-Directional Traffic Interception via L2/L3 Manipulation

Description (CNA)

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 (L2) communication restrictions between clients and redirect traffic at Layer 3 (L3). In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable a bi-directional Machine-in-the-Middle (MitM) attack.

Affected (CNA)

Vendor / product	Versions
Hewlett Packard Enterprise (HPE) / HPE Aruba Networking Wireless Operating Systems (AOS-8 & AOS-10)	affected 10.8.0.0; affected 10.7.0.0 through 10.7.2.2; affected 10.4.0.0 through 10.4.1.10; affected 8.13.0.0 through 8.13.1.1; affected 8.12.0.0 through 8.12.0.6; affected 8.10.0.0 through 8.10.0.21

CWE

No CWE identifiers supplied.

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.