CVE-2026-59124 in High Performance Computing Pack
Summary
by MITRE • 08/11/2026
Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute code over a network.
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Analysis
by VulDB Data Team • 08/11/2026
This vulnerability represents a critical deserialization flaw in Microsoft High Performance Computing Pack that enables remote code execution through untrusted data processing. The issue stems from the application's failure to properly validate and sanitize input data during the deserialization process, creating an attack vector where malicious actors can craft specially formatted payloads that execute arbitrary commands when processed by the target system.
The technical exploitation occurs when the HPC Pack component receives serialized data from untrusted sources without adequate security controls. This pattern aligns with common CWE classifications related to insecure deserialization, specifically CWE-502 which addresses deserialization of untrusted data. Attackers can leverage this weakness by sending malicious serialized objects that, when deserialized by the vulnerable application, trigger unintended code execution on the target system.
The operational impact of this vulnerability extends beyond simple remote code execution to encompass complete system compromise and potential lateral movement within network environments. Since HPC Pack systems often serve as critical infrastructure components in enterprise environments, successful exploitation could result in data breaches, service disruption, and unauthorized access to sensitive computational resources. The vulnerability affects systems where the HPC Pack is deployed for cluster management and job scheduling, making it particularly dangerous in high-value targets such as research institutions, financial services, or government agencies.
Security controls should focus on implementing strict input validation and sanitization mechanisms that prevent deserialization of untrusted data streams. Organizations must ensure proper network segmentation to limit access to HPC Pack components, implement robust monitoring for unusual deserialization activities, and maintain up-to-date system patches from Microsoft. The vulnerability also aligns with ATT&CK techniques related to remote code execution through application vulnerabilities, specifically targeting the execution phase where adversaries establish persistence and escalate privileges within compromised environments. System administrators should consider implementing application whitelisting policies to restrict which applications can process serialized data, while also establishing network-based intrusion detection systems to monitor for suspicious deserialization patterns that may indicate exploitation attempts.