In November 2025, HPE disclosed a critical remote code execution vulnerability in HPE OneView, tracked as CVE-2025-37164, and within days reports emerged of active exploitation against internet-facing management interfaces. The flaw allows unauthenticated attackers to execute arbitrary code with high privileges, turning a trusted infrastructure management platform into a beachhead for lateral movement. This article provides a technical breakdown of the vulnerability, the attacker tactics observed, and concrete detection and mitigation steps—including a Sigma rule and a Suricata signature—so your team can act before the next scan hits your OneView appliance.
Background: What is CVE-2025-37164?
CVE-2025-37164 is a critical remote code execution (RCE) vulnerability in HPE OneView, a widely deployed infrastructure management platform used to automate and monitor HPE Synergy, ProLiant, and Apollo systems. According to HPE's security advisory, the flaw resides in the OneView REST API and allows an unauthenticated attacker to execute arbitrary commands on the underlying operating system. The vulnerability has been assigned a CVSS v3.1 base score of 9.8 (Critical) due to its network attack vector, low attack complexity, and lack of required privileges. HPE released patches in November 2025, and the vulnerability was added to CISA's Known Exploited Vulnerabilities (KEV) catalog in December 2025, confirming active exploitation in the wild.
OneView is often exposed to internal networks and sometimes to the internet for remote management, making it a high-value target. Successful exploitation grants attackers full control of the appliance, from which they can pivot to managed servers, extract credentials, and manipulate firmware or boot configurations.
Affected Versions
HPE OneView versions prior to 8.70 (and specific patch levels of earlier branches) are vulnerable. The advisory lists the following affected and fixed versions:
- OneView 8.60 and earlier: update to 8.70 or later.
- OneView 8.50 and earlier: update to 8.60 (build 8.60.00-15) or later.
- OneView 8.40 and earlier: update to 8.50 (build 8.50.00-25) or later.
- OneView 8.30 and earlier: update to 8.40 (build 8.40.00-13) or later.
HPE strongly recommends upgrading to the latest available version. For full details, refer to the HPE advisory and the NVD entry.
Attacker TTPs
Public reporting and telemetry from multiple threat-intel vendors indicate that exploitation attempts began shortly after the advisory. Attackers are scanning for exposed OneView instances and sending crafted requests to the vulnerable API endpoint. The observed tactics map to MITRE ATT&CK techniques:
- T1190: Exploit Public-Facing Application — Attackers send a malicious HTTP request to the OneView API to trigger the RCE.
- T1059.004: Unix Shell — Post-exploitation, attackers execute shell commands to download tooling, establish persistence, and enumerate the environment.
- T1105: Ingress Tool Transfer — Remote file downloads (e.g., via
curlorwget) are used to pull additional payloads. - T1078: Valid Accounts — Attackers may create local accounts or modify existing ones to maintain access.
In at least one public incident report, exploitation led to the deployment of a web shell and subsequent lateral movement to managed hosts. The attacks appear opportunistic, with no single actor attributed as of this writing.
Detection
Detecting exploitation requires monitoring both network traffic and host logs. Below are practical detection rules.
Sigma Rule: Suspicious OneView API Request
This Sigma rule detects HTTP requests to the vulnerable OneView API endpoint with characteristics common in exploit attempts, such as unusual command injection patterns.
title: Potential HPE OneView RCE Exploitation Attempt
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects HTTP requests to HPE OneView API that may indicate exploitation of CVE-2025-37164.
author: CybernytronX
date: 2025/12/10
references:
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbgn04761en_us&docLocale=en_US
- https://nvd.nist.gov/vuln/detail/CVE-2025-37164
tags:
- attack.t1190
- attack.t1059.004
logsource:
category: webserver
detection:
selection:
cs-method: 'POST'
cs-uri-stem|contains: '/rest/login-sessions'
cs-uri-query|contains: 'command='
condition: selection
falsepositives:
- Legitimate administrative activity using command parameters (rare)
level: highNote: This rule is a starting point; tune the URI and parameter patterns based on your environment and the specific exploit vector.
Suricata Rule: OneView Exploit Attempt
Network detection can catch exploit attempts at the perimeter. The following Suricata rule alerts on POST requests to the OneView API with suspicious command injection strings.
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"HPE OneView RCE Exploitation Attempt (CVE-2025-37164)"; flow:to_server,established; content:"POST"; http_method; content:"/rest/login-sessions"; http_uri; content:"command="; http_uri; pcre:"/command=[^&]*[;&|`$()]/"; reference:cve,2025-37164; reference:url,support.hpe.com/hpesc/public/docDisplay?docId=hpesbgn04761en_us; classtype:attempted-admin; sid:1000001; rev:1;)Deploy this rule on your network sensors and adjust the variables to match your internal network ranges.
Host-Based Detection
On the OneView appliance, monitor for unexpected child processes spawned by the web server (e.g., bash, sh, curl, wget) and for new local user accounts. Audit logs for the oneview user and check for outbound connections to unknown IPs.
Mitigation
Apply the vendor patches immediately. If patching is not possible, restrict access to the OneView management interface to trusted networks only, and enable authentication and logging. HPE recommends the following:
- Upgrade to OneView 8.70 or later (or the appropriate fixed build for your branch).
- Block external access to the OneView REST API (typically port 443) from untrusted networks.
- Enable audit logging and forward logs to a SIEM for monitoring.
- Rotate credentials for any accounts that may have been exposed.
Refer to the HPE advisory for detailed patch instructions and workarounds.
Why This Matters for Defenders
HPE OneView is a high-privilege platform that often holds the keys to your entire HPE infrastructure. An RCE here is not just another vulnerability—it's a potential domain-wide compromise. Attackers are actively scanning for it, and the window between disclosure and exploitation is shrinking. Defenders must prioritize patching internet-facing management interfaces, implement network segmentation, and deploy detection rules that catch both exploit attempts and post-exploitation activity. Given the appliance's role, even a single compromised OneView instance can lead to lateral movement across managed servers, making this a board-level risk.
Sources
- HPE Security Advisory: CVE-2025-37164 — Official advisory detailing affected versions, CVSS score, and patch information.
- NVD Entry for CVE-2025-37164 — NIST National Vulnerability Database entry with CVSS vector and references.
- CISA Known Exploited Vulnerabilities Catalog — Confirms active exploitation and provides remediation due dates for federal agencies.
Frequently Asked Questions
What is CVE-2025-37164?
CVE-2025-37164 is a critical remote code execution vulnerability in HPE OneView, allowing unauthenticated attackers to execute arbitrary code on the appliance. It has a CVSS score of 9.8.
Which versions of HPE OneView are affected?
All versions prior to 8.70 are affected, though HPE has provided fixed builds for earlier branches. Refer to the HPE advisory for specific patch levels.
Is CVE-2025-37164 being exploited in the wild?
Yes. CISA added it to the KEV catalog in December 2025, indicating active exploitation. Attackers are scanning for exposed OneView instances.
How can I detect exploitation attempts?
Monitor web server logs for POST requests to /rest/login-sessions with suspicious command parameters, and deploy the Sigma and Suricata rules provided in this article. Also watch for unexpected child processes on the appliance.
What should I do if I cannot patch immediately?
Restrict network access to the OneView management interface, enable logging, and monitor for indicators of compromise. Apply the patch as soon as possible.
Does this vulnerability affect OneView appliances managed by HPE OneView Global Dashboard?
The vulnerability is in the OneView appliance itself. If your Global Dashboard connects to vulnerable OneView instances, those instances remain at risk. Patch all OneView appliances.
Need expert help with this?
If you're managing HPE OneView or other critical infrastructure, CybernytronX can help you assess exposure, deploy detection rules, and build a resilient SOC. Our team offers penetration testing, SOC build-out, and threat detection powered by Ethereon AI. Visit our contact page to discuss your needs, or learn more about Ethereon AI threat detection. Don't wait for an exploit to find you.