High severity · published Mar 4, 2026
CVE-2026-23809
MAC Address Spoofing leads to Inter-BSSID Isolation Bypass Resulting in Traffic Redirection
7.6
CVSS
0.3%
EPSS
No
On KEV
Description
A technique has been identified that adapts a known port-stealing method to Wi-Fi environments that use multiple BSSIDs. By leveraging the relationship between BSSIDs and their associated virtual ports, an attacker could potentially bypass inter-BSSID isolation controls. Successful exploitation may enable an attacker to redirect and intercept the victim's network traffic, potentially resulting in eavesdropping, session hijacking, or denial of service.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
HPE Aruba Networking Wireless Operating System (AOS-10 & AOS-8) · Hewlett Packard Enterprise (HPE)
10.8.0.0; 10.7.0.0 through 10.7.2.2; 10.4.0.0 through 10.4.1.10; 8.13.0.0 through 8.13.1.1; 8.12.0.0 through 8.12.0.6; 8.10.0.0 through 8.10.0.21 · source: vendor
AR
Arubaos · Arubanetworks
6.5.4.0 through 8.10.0.21; 8.11.0.0 through 8.12.0.6; 8.13.0.0 through 8.13.1.1; 10.3.0.0 through 10.4.1.10; 10.5.0.0 through 10.7.2.2; 10.8.0.0 · source: NVD
Affected product
HA
HPE Aruba Networking Wireless Operating System (AOS-10 & AOS-8)
Hewlett Packard Enterprise (HPE)
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23809
Vendor Advisory
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US
More from HPE Aruba Networking Wireless Operating System (AOS-10 & AOS-8)
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Client Isolation Bypass via GTK Manipulation
5.4
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Frame Injection via Shared GTK Allows Traffic Spoofing and Client Compromise
