High severity · published Mar 4, 2026
CVE-2026-23808
Client Isolation Bypass via GTK Manipulation
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability has been identified in a standardized wireless roaming protocol that could enable a malicious actor to install an attacker-controlled Group Temporal Key (GTK) on a client device. Successful exploitation of this vulnerability could allow a remote malicious actor to perform unauthorized frame injection, bypass client isolation, interfere with cross-client traffic, and compromise network segmentation, integrity, and confidentiality.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% 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-2026-23808
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23808
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)
7.6
CVE-2026-23809
MAC Address Spoofing leads to Inter-BSSID Isolation Bypass Resulting in Traffic Redirection
5.4
CVE-2026-23601
Frame Injection via Shared GTK Allows Traffic Spoofing and Client Compromise
