CVE-2026-35084 in Single-A
Summary
by MITRE • 06/03/2026
A remote attacker with user privileges can exploit a stack buffer overflow in dali-devconfig to gain full system access as root.
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Analysis
by VulDB Data Team • 06/03/2026
This vulnerability represents a critical stack buffer overflow flaw in the dali-devconfig utility that operates with elevated privileges, creating a significant attack surface for remote exploitation. The flaw occurs when user-level attackers can manipulate input parameters passed to the dali-devconfig component, causing a stack-based buffer overflow that allows arbitrary code execution with root privileges. The vulnerability stems from insufficient input validation and bounds checking within the device configuration utility, which typically runs with administrative permissions to manage hardware device configurations. Attackers can leverage this weakness by crafting malicious input that exceeds the allocated buffer space, overwriting adjacent stack memory including return addresses and control flow information.
The technical implementation of this vulnerability aligns with CWE-121 Stack-based Buffer Overflow, where insufficient bounds checking allows attackers to overwrite stack memory and potentially redirect program execution. The dali-devconfig utility likely processes device configuration parameters without proper input sanitization, making it susceptible to malformed data that triggers the buffer overflow condition. When the vulnerable function executes with user privileges but operates in a context that allows privilege escalation, the attack vector becomes particularly dangerous as it can be exploited remotely without requiring local access or authentication. This scenario represents a classic privilege escalation vulnerability where a standard user can leverage a flaw in a privileged utility to achieve root access.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with complete system control and persistence capabilities. Once exploited, attackers can establish backdoors, exfiltrate sensitive data, modify system configurations, and maintain long-term access to compromised systems. The remote nature of the attack means that exploitation can occur from any network location without requiring physical access or prior authentication. This vulnerability affects systems where dali-devconfig is installed and running with elevated privileges, potentially impacting network infrastructure, embedded systems, and device management platforms. The attack chain typically involves crafting malicious input, transmitting it to the vulnerable service, and leveraging the buffer overflow to execute arbitrary code with root privileges.
Mitigation strategies must address both immediate protection and long-term system hardening to prevent exploitation of this buffer overflow vulnerability. System administrators should immediately apply vendor patches or updates that address the input validation flaws in dali-devconfig, ensuring proper bounds checking and memory management practices are implemented. Network segmentation and access controls should be enforced to limit exposure of systems running vulnerable versions of the utility, while monitoring systems should be configured to detect unusual input patterns or attempted exploitation attempts. The principle of least privilege should be enforced by ensuring that dali-devconfig operates with minimal required permissions, and input validation should be implemented at multiple layers to prevent malformed data from reaching vulnerable functions. Additionally, implementing stack protection mechanisms such as stack canaries, address space layout randomization, and non-executable stack protections can significantly reduce the effectiveness of exploitation attempts. Organizations should also consider implementing intrusion detection systems to monitor for exploitation attempts and maintain regular vulnerability assessments to identify similar issues in other system components. This vulnerability demonstrates the critical importance of secure coding practices and proper input validation in privileged system utilities, as flaws in these components can provide attackers with immediate root access to entire systems.