CVE-2025-32732 in QAT Windows Software
Summary
by MITRE • 11/11/2025
Buffer overflow for some Intel(R) QAT Windows software before version 2.6.0. within Ring 3: User Applications may allow a denial of service. System software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
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Analysis
by VulDB Data Team • 12/15/2025
The vulnerability identified as CVE-2025-32732 represents a critical buffer overflow condition within Intel's Quick Assist Technology QAT Windows software ecosystem. This flaw specifically affects versions prior to 2.6.0 and operates within Ring 3 user applications, making it particularly concerning as it can be exploited by authenticated users with minimal attack complexity. The vulnerability stems from inadequate bounds checking in memory allocation routines that handle data processing operations typical of QAT acceleration workloads. The buffer overflow occurs when user applications process data through the QAT API without proper input validation, leading to memory corruption that can be leveraged for system disruption.
The technical exploitation of this vulnerability follows established patterns consistent with CWE-121 buffer overflow conditions where insufficient memory bounds checking allows attackers to overwrite adjacent memory locations. Attackers with authenticated access to systems running vulnerable QAT software can craft malicious input sequences that exceed allocated buffer boundaries, potentially causing application crashes or system instability. The low complexity requirement means that adversaries need minimal specialized knowledge to exploit this condition, while local access requirements eliminate the need for network-based attack vectors or user interaction. This combination of factors creates a particularly dangerous scenario where legitimate users can inadvertently or maliciously trigger system-wide denial of service conditions.
From an operational impact perspective, the vulnerability presents a high availability risk that can severely disrupt business operations dependent on QAT acceleration services. Systems utilizing Intel QAT for data compression, encryption, or cryptographic processing may experience complete service outages when exploited, potentially affecting multiple concurrent operations. The confidentiality and integrity impacts are rated as low because the primary effect is denial of service rather than data exfiltration or modification, though the availability impact is substantial as system resources become unavailable to legitimate users. The vulnerability's potential to cause system-wide instability means that organizations relying on QAT-accelerated applications face significant operational risks during exploitation.
Mitigation strategies should prioritize immediate software updates to version 2.6.0 or later, which contain the necessary patches to address the buffer overflow conditions. Organizations should implement network segmentation to limit access to systems running vulnerable QAT software, particularly in environments where authentication is not strictly enforced. Additional protective measures include implementing strict input validation controls within applications that utilize QAT APIs, monitoring for unusual application behavior or crash patterns, and establishing robust incident response procedures for potential exploitation events. Security teams should also consider implementing application whitelisting policies to restrict execution of untrusted code that might leverage this vulnerability. The ATT&CK framework categorizes this as a privilege escalation and denial of service technique where adversaries leverage legitimate system tools to disrupt services, emphasizing the importance of principle of least privilege enforcement and continuous monitoring of system integrity.