CVE-2026-46463 in PowerProtect Data Domain
Summary
by MITRE • 07/03/2026
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an integer overflow or wraparound vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service.
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Analysis
by VulDB Data Team • 07/04/2026
This vulnerability exists within Dell PowerProtect Data Domain systems across multiple release versions including 7.7.1.0 through 8.7 and specific LTS releases from 2024 through 2026. The integer overflow or wraparound flaw represents a fundamental programming error that occurs when an arithmetic operation produces a result that exceeds the maximum value that can be stored in the target data type, causing the value to wrap around to a much smaller number. This type of vulnerability falls under CWE-190, which specifically addresses integer overflow conditions that can lead to unpredictable behavior and potential security consequences.
The technical exploitation of this vulnerability requires an unauthenticated attacker with remote network access to the affected system. The flaw manifests during operations where integer values are processed in a manner that does not properly validate or handle boundary conditions, allowing malicious input to cause the integer to exceed its maximum allowable range and subsequently wrap around. This behavior can occur in various system components including network protocols, file handling mechanisms, or internal counter management functions where integer variables are used to control loop iterations, buffer sizes, or memory allocation parameters.
The operational impact of this vulnerability is primarily focused on achieving denial of service conditions within the Data Domain environment. When exploited successfully, the integer wraparound can cause system processes to malfunction, leading to application crashes, service interruptions, or complete system unavailability. The remote nature of the attack means that adversaries do not require physical access or valid credentials to attempt exploitation, making this vulnerability particularly concerning for networked storage environments where availability is critical. The vulnerability affects the overall reliability and uptime of data protection services, potentially disrupting backup operations and data recovery processes that organizations depend upon.
Security mitigations for this vulnerability should focus on applying the latest firmware updates provided by Dell, which would contain patches addressing the integer overflow conditions in the affected software versions. Organizations should also implement network segmentation and access controls to limit potential attack vectors, ensuring that only authorized personnel can reach the Data Domain systems. Monitoring network traffic for anomalous patterns or exploitation attempts related to the vulnerable components can help detect potential attacks. Additionally, implementing intrusion detection systems with signatures specific to this vulnerability type would provide early warning capabilities. From a compliance perspective, this vulnerability relates to security standards such as those outlined in NIST SP 800-53 and ISO/IEC 27001, which emphasize the importance of maintaining system integrity and availability through proper vulnerability management practices. The ATT&CK framework categorizes this type of vulnerability under T1499.004 for network denial of service and T1068 for local privilege escalation techniques that may be leveraged in combination with other exploitation methods.