CVE-2025-36118
7.5IBM · Storage Virtualize
IBM Storage Virtualize versions 8.4, 8.5, 8.7, and 9.1 contain a heap inspection vulnerability in the IKEv1 implementation that allows unauthorized memory access via a crafted SA negotiation request.
Executive summary
A critical information disclosure vulnerability in IBM Storage Virtualize allows unauthenticated remote attackers to extract sensitive data from device memory.
Vulnerability
The vulnerability, classified as CWE-244, stems from improper clearing of heap memory during IKEv1 Security Association (SA) negotiations. This flaw permits an unauthenticated remote attacker to gain access to sensitive information residing in the device memory.
Business impact
The ability for an unauthenticated attacker to read sensitive memory contents poses a significant risk to data confidentiality and infrastructure integrity. Given the 7.5 CVSS score, this vulnerability could expose cryptographic keys, administrative credentials, or internal system configurations, potentially leading to a full compromise of the storage environment and subsequent lateral movement within the network.
Remediation
Immediate Action: Upgrade all affected IBM Storage Virtualize instances to the patched code levels specified in the official IBM security advisory (reference: https://www.ibm.com/support/pages/node/7250954).
Proactive Monitoring: Review system logs for unusual IKEv1 negotiation patterns or repeated connection attempts that may indicate reconnaissance or exploitation attempts directed at the storage management interface.
Compensating Controls: If immediate patching is not feasible, restrict network access to the storage management interface to trusted IP addresses only, and disable IKEv1 if the environment supports migration to more secure VPN or connection protocols.
Exploitation status
Public Exploit Available: No (exploit_available: unknown)
Analyst recommendation
The severity of this vulnerability, combined with the ease of exploitation over the network, necessitates immediate attention from security teams. Organizations should prioritize the deployment of the provided vendor patches to ensure that sensitive memory remains protected from unauthorized access, as this is the only definitive way to close the security gap.