CVE-2026-23808
Published: 04 March 2026
Summary
CVE-2026-23808 is a medium-severity Code Injection (CWE-94) vulnerability in Arubanetworks Arubaos. Its CVSS base score is 5.4 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Network Sniffing (T1040); ranked at the 17.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-18 (Wireless Access) and SC-40 (Wireless Link Protection).
Deeper analysis
CVE-2026-23808, published on 2026-03-04, is a vulnerability in a standardized wireless roaming protocol that allows a malicious actor to install an attacker-controlled Group Temporal Key (GTK) on a client device. It carries a CVSS v3.1 base score of 5.4 (AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) and maps to CWE-94 (Code Injection). The vulnerability affects client devices using this protocol in wireless networks.
A remote malicious actor with adjacent network access can exploit the issue with low attack complexity, requiring no privileges or user interaction. Successful exploitation enables unauthorized frame injection, bypass of client isolation, interference with cross-client traffic, and compromise of network segmentation, integrity, and confidentiality.
Mitigation details are available in the HPE security advisory at https://support.hpesc/public/docDisplay?docId=hpesbnw05026en_us&docLocale=en_US.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9414
Vulnerability details
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…
more
to perform unauthorized frame injection, bypass client isolation, interfere with cross-client traffic, and compromise network segmentation, integrity, and confidentiality.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability enables malicious GTK installation on wireless clients, directly facilitating network sniffing of group traffic and adversary-in-the-middle attacks via frame injection and isolation bypass.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires protection mechanisms for wireless links, including proper Group Temporal Key (GTK) handling during roaming to block attacker-controlled key installation.
Mandates security controls for wireless access, specifically addressing protocol-level risks that enable unauthorized GTK installation and client isolation bypass.
Requires secure cryptographic key establishment and management processes that would prevent installation of attacker-supplied GTK keys on client devices.