CVE-2025-26480
📋 TL;DR
Dell PowerScale OneFS versions 9.5.0.0 through 9.10.0.0 contain an uncontrolled resource consumption vulnerability. An unauthenticated remote attacker could exploit this to cause denial of service by exhausting system resources. Organizations running affected Dell PowerScale storage systems are impacted.
💻 Affected Systems
- Dell PowerScale OneFS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability due to resource exhaustion, disrupting all storage services and potentially affecting dependent applications.
Likely Case
Degraded performance or temporary service interruption affecting storage operations until resources recover or system restarts.
If Mitigated
Minimal impact with proper network segmentation and monitoring that detects and blocks exploitation attempts early.
🎯 Exploit Status
The vulnerability description suggests straightforward exploitation requiring only remote access, though specific exploit details aren't public.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 9.10.0.0 (check Dell advisory for specific fixed versions)
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000300860/dsa-2025-119-security-update-for-dell-powerscale-onefs-for-multiple-security-vulnerabilities
Restart Required: Yes
Instructions:
1. Review Dell advisory DSA-2025-119. 2. Apply the recommended OneFS update. 3. Restart affected systems as required. 4. Verify update completion.
🔧 Temporary Workarounds
Network Access Control
allRestrict network access to PowerScale management interfaces to trusted IPs only
Configure firewall rules to limit access to PowerScale management ports
Rate Limiting
allImplement network rate limiting to prevent resource exhaustion attacks
Configure network devices to limit connections to PowerScale systems
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to PowerScale systems
- Deploy intrusion detection/prevention systems to monitor for DoS attack patterns
🔍 How to Verify
Check if Vulnerable:
Check OneFS version via CLI: 'isi version' or web interface. Compare against affected range 9.5.0.0-9.10.0.0.Check Version:
isi versionVerify Fix Applied:
Verify version is updated beyond 9.10.0.0 using 'isi version' command and check for patch application in system logs.📡 Detection & Monitoring
Log Indicators:
- Unusual resource consumption spikes
- Multiple connection attempts from single sources
- System performance degradation alerts
Network Indicators:
- High volume of requests to PowerScale management ports
- Traffic patterns suggesting resource exhaustion attempts
SIEM Query:
source="powerscale" AND (resource_utilization>90 OR connection_rate>threshold)