CVE-2026-23811

Unauthorized Bi-Directional Traffic Interception via L2/L3 Manipulation

Published Mar 4, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arubanetworks
Arubanetworks 7010
Arubanetworks 7030
Arubanetworks 7205
Arubanetworks 7210
Arubanetworks 7220
Arubanetworks 7240xm
Arubanetworks 7280
Arubanetworks 9004
Arubanetworks 9004-lte
Arubanetworks 9012
Arubanetworks 9106
Arubanetworks 9114
Arubanetworks 9240
Arubanetworks ap-634
Arubanetworks ap-635
Arubanetworks ap-654
Arubanetworks ap-655
Arubanetworks arubaos
CPEs cpe:2.3:h:arubanetworks:7010:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7030:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7205:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7210:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7220:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7240xm:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:7280:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9004-lte:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9004:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9012:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9106:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9114:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:9240:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:ap-634:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:ap-635:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:ap-654:-:*:*:*:*:*:*:*
cpe:2.3:h:arubanetworks:ap-655:-:*:*:*:*:*:*:*
cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
cpe:2.3:o:arubanetworks:arubaos:10.8.0.0:*:*:*:*:*:*:*
Vendors & Products Arubanetworks
Arubanetworks 7010
Arubanetworks 7030
Arubanetworks 7205
Arubanetworks 7210
Arubanetworks 7220
Arubanetworks 7240xm
Arubanetworks 7280
Arubanetworks 9004
Arubanetworks 9004-lte
Arubanetworks 9012
Arubanetworks 9106
Arubanetworks 9114
Arubanetworks 9240
Arubanetworks ap-634
Arubanetworks ap-635
Arubanetworks ap-654
Arubanetworks ap-655
Arubanetworks arubaos
Type Values Removed Values Added
First Time appeared Hpe
Hpe aruba Networking Wireless Operating Systems
Vendors & Products Hpe
Hpe aruba Networking Wireless Operating Systems
Type Values Removed Values Added
Weaknesses CWE-300
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Unauthorized Bi-Directional Traffic Interception via L2/L3 Manipulation
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}