CVE-2026-44853: Arubanetworks ArubaOS RCE Vulnerability

CVE-2026-44853 Overview

CVE-2026-44853 is a command injection vulnerability in the web-based management interface of Aruba Networks AOS-8 and AOS-10 operating systems. An authenticated remote attacker with high privileges can upload arbitrary files to the underlying operating system. Successful exploitation can lead to remote code execution as a privileged user on affected devices.

The issue is tracked under [CWE-77] (Improper Neutralization of Special Elements used in a Command). HPE Aruba Networking has published a security advisory addressing the flaw across affected ArubaOS and SD-WAN releases.

Critical Impact
Authenticated attackers can achieve remote code execution as a privileged user on Aruba network infrastructure, compromising the management plane of enterprise wireless and SD-WAN deployments.

Affected Products

Aruba Networks ArubaOS (AOS-8 and AOS-10)
Aruba Networks SD-WAN
HPE Aruba Networking devices running the web-based management interface

Discovery Timeline

2026-05-12 - CVE-2026-44853 published to the National Vulnerability Database
2026-05-14 - Last updated in NVD database
2026-05-17 - EPSS score recorded at 0.225%

Technical Details for CVE-2026-44853

Vulnerability Analysis

The vulnerability resides in the web-based management interface exposed by ArubaOS and SD-WAN. Input passed to one or more management endpoints is not properly neutralized before being used in operating system command construction. An authenticated attacker can inject shell metacharacters or command separators into parameters that are concatenated into system commands.

The network attack vector means exploitation occurs over the management network. However, the attacker must already hold high-privilege credentials to reach the vulnerable functionality. Once exploited, the attacker can write arbitrary files to the underlying OS, providing a path to full code execution under the management plane's user context.

Because Aruba controllers and gateways often manage wireless infrastructure, SD-WAN tunnels, and corporate segmentation, successful exploitation can pivot attackers into deeper portions of the enterprise network.

Root Cause

The root cause is improper neutralization of special elements used in OS commands [CWE-77]. The management interface accepts user-controlled input that is passed into command execution routines without sufficient sanitization or use of parameterized APIs. The file upload-related functionality also fails to constrain destination paths, enabling arbitrary file write on the underlying operating system.

Attack Vector

Exploitation requires authentication with high privileges to the web-based management interface. The attacker sends crafted requests containing injected commands or malicious file upload payloads. The vulnerable handler executes the injected sequence in the context of the management process. No user interaction is required beyond the attacker's own authenticated session.

No public proof-of-concept exploit code is available, and the vulnerability is not listed on the CISA Known Exploited Vulnerabilities catalog. Refer to the HPE Security Advisory for technical details.

Detection Methods for CVE-2026-44853

Indicators of Compromise

Unexpected files written to ArubaOS filesystem paths outside normal configuration directories
Management interface HTTP requests containing shell metacharacters such as ;, |, &&, backticks, or $(...) constructs in parameter values
New or modified scripts, binaries, or startup configuration entries on AOS-8 or AOS-10 devices
Outbound connections originating from controllers or gateways to unfamiliar hosts following administrator activity

Detection Strategies

Inspect web management access logs for anomalous parameter values targeting file upload and configuration endpoints
Correlate privileged administrator login events with subsequent file system or process changes on the device
Monitor TACACS+ or RADIUS authentication logs for unusual administrator sessions preceding configuration anomalies
Compare device configuration baselines against known-good snapshots to identify unauthorized modifications

Monitoring Recommendations

Forward syslog and audit data from ArubaOS and SD-WAN devices to a centralized SIEM for behavioral analysis
Alert on administrator sessions originating from networks not on the approved management allowlist
Track integrity of system binaries and startup configuration files on Aruba controllers
Review HPE Aruba Networking security advisories continuously and map findings to internal asset inventories

How to Mitigate CVE-2026-44853

Immediate Actions Required

Apply the patches referenced in the HPE Aruba Networking security advisory to all affected AOS-8 and AOS-10 devices
Restrict access to the web-based management interface to a dedicated, isolated management VLAN
Rotate administrative credentials and audit privileged account membership on Aruba controllers and gateways
Review recent administrator activity logs for evidence of unauthorized file uploads or command execution

Patch Information

HPE Aruba Networking has released fixed versions of ArubaOS for the AOS-8 and AOS-10 branches as well as the SD-WAN product. Administrators should consult the HPE Security Document to identify the exact fixed releases applicable to their hardware platform and deployment branch, then schedule upgrades according to the vendor's guidance.

Workarounds

Limit web management interface exposure to a restricted set of administrative source IP addresses using firewall or device ACL policies
Disable the web-based management interface where command-line or out-of-band management is sufficient
Enforce multi-factor authentication for all administrator accounts that can reach the management interface
Segment management traffic from production and user networks to reduce blast radius if credentials are compromised

bash

# Example: restrict management access on ArubaOS
configure terminal
mgmt-user ssh-pubkey-only
web-server
  mgmt-auth certificate
  ssl-protocol tlsv1.2
  no enable
ip access-list standard MGMT-ACL
  permit host 10.10.10.5
  permit host 10.10.10.6
  deny any
!
management access-list MGMT-ACL
end
write memory