CVE-2025-30476: Dell InsightIQ DOS Vulnerability

CVE-2025-30476 Overview

CVE-2025-30476 is an uncontrolled resource consumption vulnerability affecting Dell PowerScale InsightIQ version 5.2. This denial of service vulnerability allows an unauthenticated attacker with remote network access to exhaust system resources, potentially rendering the InsightIQ monitoring and analytics platform unavailable. InsightIQ is a critical component used to monitor and analyze performance data from Dell PowerScale storage clusters, making this vulnerability particularly impactful for enterprise storage environments.

Critical Impact

Unauthenticated remote attackers can exploit this vulnerability to cause denial of service conditions, disrupting monitoring capabilities for PowerScale storage infrastructure without requiring any user interaction or authentication credentials.

Affected Products

• Dell PowerScale InsightIQ version 5.2.0
• Dell InsightIQ deployments with network-accessible interfaces
• Enterprise storage monitoring environments using affected InsightIQ versions

Discovery Timeline

• 2025-05-15 - CVE-2025-30476 published to NVD
• 2025-10-30 - Last updated in NVD database

Technical Details for CVE-2025-30476

Vulnerability Analysis

This vulnerability is classified as CWE-400 (Uncontrolled Resource Consumption), commonly known as a resource exhaustion vulnerability. The flaw exists in Dell PowerScale InsightIQ version 5.2, where the application fails to properly limit or throttle resource consumption when processing incoming requests. This allows remote attackers to consume excessive system resources such as memory, CPU cycles, or network bandwidth without requiring authentication.

The attack can be launched remotely over the network with low complexity. No privileges or user interaction are required, making this vulnerability particularly dangerous in exposed network environments. While the vulnerability does not impact confidentiality or integrity, it poses a significant threat to service availability.

Root Cause

The root cause of CVE-2025-30476 lies in insufficient resource management controls within the Dell PowerScale InsightIQ application. The affected component does not properly validate or limit the rate and volume of incoming requests, allowing attackers to overwhelm system resources. This lack of proper resource throttling mechanisms enables malicious actors to trigger resource exhaustion conditions that can render the service unresponsive.

Attack Vector

The attack vector for this vulnerability is network-based, requiring only remote access to the InsightIQ service. An attacker can exploit this vulnerability by sending specially crafted requests designed to consume excessive resources on the target system. Since no authentication is required, any attacker with network visibility to the InsightIQ instance can potentially launch this denial of service attack.

The exploitation requires no user interaction and can be executed with low attack complexity. The attacker sends a high volume of resource-intensive requests or specially crafted payloads that trigger inefficient processing routines, ultimately exhausting available system resources and causing service degradation or complete unavailability.

Detection Methods for CVE-2025-30476

Indicators of Compromise

• Unusual spikes in CPU or memory utilization on InsightIQ servers without corresponding legitimate workload increases
• High volume of incoming network connections or requests from single or multiple source IPs targeting InsightIQ services
• Service degradation or unresponsiveness of the InsightIQ web interface or API endpoints
• System logs indicating resource exhaustion, out-of-memory conditions, or service restarts

Detection Strategies

• Implement network traffic analysis to detect abnormal request patterns or volumetric anomalies targeting InsightIQ services
• Configure system-level monitoring to alert on resource utilization thresholds exceeding normal baselines
• Deploy intrusion detection systems (IDS) with rules to identify potential DoS attack patterns against InsightIQ endpoints
• Enable comprehensive logging and audit trails for InsightIQ application access and system performance metrics

Monitoring Recommendations

• Establish baseline resource utilization metrics for InsightIQ deployments and configure alerting for deviations
• Monitor network traffic patterns to and from InsightIQ servers for volumetric anomalies
• Implement real-time dashboard monitoring for InsightIQ service availability and response times
• Configure SIEM correlation rules to detect potential DoS attack indicators across multiple data sources

How to Mitigate CVE-2025-30476

Immediate Actions Required

• Review the Dell Security Update DSA-2025-186 for official guidance and patch information
• Restrict network access to InsightIQ services using firewall rules to limit exposure to trusted networks only
• Implement rate limiting and connection throttling at the network perimeter to mitigate potential DoS attempts
• Monitor InsightIQ systems for signs of exploitation while preparing to apply vendor patches

Patch Information

Dell has released a security update addressing this vulnerability as documented in Dell Security Advisory DSA-2025-186. Organizations running Dell PowerScale InsightIQ version 5.2.0 should review the advisory and apply the recommended security updates as soon as possible. The advisory contains details on patched versions and upgrade procedures.

Workarounds

• Implement network segmentation to isolate InsightIQ services from untrusted network segments
• Configure perimeter firewalls to restrict access to InsightIQ only from authorized management networks
• Deploy a web application firewall (WAF) or reverse proxy with rate limiting capabilities in front of InsightIQ services
• Consider temporarily disabling external network access to InsightIQ if not operationally required until patches can be applied

# Example firewall configuration to restrict InsightIQ access
# Allow access only from trusted management network
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP