Client Isolation Bypass in HPE Networking Products
CVE-2026-23811

4.3MEDIUM

Key Information:

Vendor

HP (HP)

Status
HP Aruba Networking Wireless Operating Systems (aos-8 & Aos-10)
Vendor
CVE Published:
4 March 2026

What is CVE-2026-23811?

A security flaw in HPE's client isolation mechanism allows an attacker to circumvent Layer 2 (L2) communication restrictions. This vulnerability can lead to Layer 3 (L3) traffic redirection, effectively allowing attackers to bypass policy enforcement measures. If exploited in conjunction with a port-stealing attack, it may facilitate a bi-directional Machine-in-the-Middle (MitM) attack, posing severe risks to network integrity and confidentiality.

Affected Version(s)

HPE Aruba Networking Wireless Operating Systems (AOS-8 & AOS-10) 10.8.0.0

HPE Aruba Networking Wireless Operating Systems (AOS-8 & AOS-10) 10.8.0.0

HPE Aruba Networking Wireless Operating Systems (AOS-8 & AOS-10) 10.7.0.0 <= 10.7.2.2

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpe...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan,Srikanth V. Krishnamurthy from University of California, and Mathy Vanhoef from DistriNet, KU Leuven
.