CVE-2025-27034 in Snapdragon Auto
Summary
by MITRE • 09/24/2025
Memory corruption while selecting the PLMN from SOR failed list.
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Analysis
by VulDB Data Team • 09/24/2025
This vulnerability exists within the mobile network infrastructure where a memory corruption issue occurs during the selection process of a Public Land Mobile Network (PLMN) from the SOR failed list. The flaw manifests when the system attempts to handle failed PLMN selection operations, specifically within the context of subscription management and network access control. The underlying memory corruption represents a critical weakness that can potentially allow unauthorized access to network resources and compromise the integrity of mobile network operations.
The technical implementation of this vulnerability stems from improper memory handling during PLMN selection workflows. When a mobile device attempts to connect to a network and encounters failures in the SOR (Subscription Order Routing) process, the system fails to properly manage memory allocation and deallocation. This leads to buffer overflows, use-after-free conditions, or other memory corruption patterns that can be exploited by malicious actors. The vulnerability is particularly concerning because it operates at the network infrastructure level where PLMN selection is a fundamental operation for mobile connectivity.
The operational impact of this vulnerability extends beyond simple service disruption to encompass potential security breaches and network compromise. Attackers could exploit this memory corruption to gain unauthorized access to mobile network infrastructure, potentially enabling them to intercept communications, perform man-in-the-middle attacks, or manipulate subscription data. The vulnerability affects the core network functions that manage mobile device connectivity, making it a significant concern for network operators and mobile service providers who rely on robust subscription management systems.
Mitigation strategies should focus on implementing proper memory management practices and input validation within the PLMN selection process. Network operators should deploy patches that address the specific memory handling issues in the SOR failed list processing functionality. Additionally, implementing robust error handling mechanisms and memory sanitization tools can help prevent exploitation of this vulnerability. The fix should include proper bounds checking, memory allocation verification, and secure coding practices that align with industry standards such as those recommended in the CWE-122 category for buffer overflow vulnerabilities. Organizations should also consider implementing network segmentation and monitoring solutions to detect potential exploitation attempts and maintain compliance with telecommunications security frameworks.