CVE-2026-23822: medium-severity vulnerability in Hewlett Packard Enterprise (HPE) ArubaOS (AOS)
Unauthenticated XML External Entity Injection in AOS-8 Instant allows Denial of Service
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
A vulnerability in the XML handling component of AOS-8 DHCP services could allow an unauthenticated remote attacker to trigger a denial-of-service condition. Successful exploitation could allow an attacker to cause excessive resource consumption upon user interaction, leading to service disruption or reduced availability of the affected system.
NOTE: This vulnerability only impacts Access Points running AOS Instant 8.x.x.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
Hewlett Packard Enterprise (HPE) · ArubaOS (AOS)Related CVEs — Hewlett Packard Enterprise (HPE) ArubaOS (AOS)
In the same product, most dangerous first.
CVE-2026-79861CRITICALUnauthenticated Command Injection Vulnerability in the PAPI Protocol of AOS-10EPSS 1.7%CVE-2026-79846CRITICALUnauthenticated Command Injection Vulnerabilities in AOS-8EPSS 1.6%CVE-2026-95715MEDIUMUnauthenticated Local Command Injection Vulnerability in AOS-10 Command Line InterfaceEPSS 1.6%CVE-2026-79864CRITICALUnauthenticated Adjacent Command Injection Vulnerability in AOS-10EPSS 1.5%CVE-2025-37176MEDIUMAuthenticated Command Injection Vulnerability in an AOS-8 operating system's internal workflowEPSS 1.4%CVE-2026-79857CRITICALUnauthenticated Command Injection Vulnerability in AOS-8 PAPI ProtocolEPSS 1.4%