CVE-2026-88075 in Configuration Manager
Summary
by MITRE • 10/14/2026
Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Configuration Manager allows an authorized attacker to elevate privileges over a network.
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Analysis
by VulDB Data Team • 10/14/2026
The vulnerability described constitutes a classic SQL Injection flaw within the Microsoft Configuration Manager infrastructure, specifically categorized under CWE-89: Improper Neutralization of Special Elements used in an SQL Command. This security defect arises from insufficient validation or sanitization of user-supplied input before it is incorporated into dynamic SQL queries executed by the backend database engine. In this context, the attack vector requires network access and valid authentication credentials, indicating that the vulnerability affects authenticated users rather than unauthenticated remote attackers. The presence of an authorized attacker as a prerequisite highlights that while the initial entry point may be restricted to legitimate system operators or domain-joined accounts with specific roles, the lack of proper input handling allows these privileged entities to exploit the flaw for unintended outcomes.
From a technical perspective, SQL Injection occurs when an application constructs SQL statements using string concatenation without properly escaping special characters such as single quotes, semicolons, or comment markers. In Microsoft Configuration Manager, this likely involves components that process configuration data, user inputs, or administrative commands and pass them directly to the underlying database system, typically Microsoft SQL Server. An attacker can craft malicious input strings designed to alter the logic of the original query. By injecting arbitrary SQL code, the attacker can manipulate the database operations beyond their intended scope. This might involve bypassing existing access controls, extracting sensitive data from tables they should not have permission to read, or modifying configuration settings that dictate system behavior and security policies.
The operational impact of this vulnerability is severe due to its potential for privilege escalation within the Configuration Manager environment. Although the attacker starts with authorized credentials, exploiting this flaw allows them to perform actions outside their assigned role boundaries. For instance, an administrator responsible only for software distribution might be able to execute administrative commands related to user management or site configuration by injecting SQL that modifies access control lists or creates new privileged accounts directly in the database schema. This undermines the principle of least privilege and can lead to a complete compromise of the Configuration Manager infrastructure. Once the attacker gains elevated privileges, they can potentially deploy malicious software across the enterprise network, exfiltrate sensitive organizational data stored within the configuration database, or disrupt critical IT operations managed by the platform.
In terms of threat modeling and industry frameworks, this vulnerability aligns with MITRE ATT&CK techniques related to SQL Injection (T1190) and potentially Account Manipulation (T1098) if used to create backdoor accounts. It also relates to Data Exfiltration over a non-encrypted network channel (T1041) or Local Privilege Escalation (T1068) depending on the specific exploitation path taken against the database engine and its integration with Windows authentication mechanisms. The ability to escalate privileges via SQL injection is particularly dangerous because it bypasses traditional operating system-level access controls by interacting directly with the data layer, often running under high-privilege service accounts associated with the Configuration Manager site server.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Microsoft has historically addressed such vulnerabilities through cumulative updates and security patches for Configuration Manager; therefore, ensuring that all sites and clients are updated to the latest supported version is the primary defense. Beyond patching, developers and administrators should enforce strict input validation practices where any data entering SQL queries must be parameterized or use stored procedures with strongly typed parameters rather than string concatenation. This approach ensures that user input is treated as data rather than executable code. Additionally, implementing robust logging and monitoring for anomalous database query patterns can help detect exploitation attempts in real-time. Network segmentation should also be considered to limit the exposure of Configuration Manager components to only necessary administrative workstations, reducing the attack surface available to potential insiders or compromised accounts with network access.