CVE-2026-25280 in Snapdragon Compute
Summary
by MITRE • 09/17/2026
Memory corruption when processing escape handling flow with insufficient user buffer sizes.
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability described involves a critical memory corruption flaw occurring within the application's escape character handling logic, specifically triggered by scenarios where input buffers are inadequately sized relative to expected data expansion or transformation requirements. This type of defect is classically categorized under CWE-120 Buffer Copy without Checking Size of Input and often falls into the broader category of CWE-787 Out-of-bounds Write if the corruption results in writing beyond allocated memory boundaries, or CWE-134 Use of Externally-Controlled Format String if the escape processing involves string formatting functions that interpret user input as format specifiers. The root cause lies in a failure to perform rigorous bounds checking before copying or manipulating data derived from external sources, particularly when escape sequences are processed which may expand the effective size of the payload beyond the initial buffer allocation assumptions made by the developer during design.
From an operational perspective, this flaw allows for severe consequences ranging from application crashes leading to denial-of-service conditions to arbitrary code execution with the privileges of the affected process. When a user provides input that exploits the insufficient buffer sizing during escape handling, the resulting memory overwrite can corrupt adjacent heap or stack structures, including function return addresses, exception handlers, or critical data pointers. This manipulation enables an attacker to redirect program flow and execute malicious payloads injected into the vulnerable application's address space. Such attacks are frequently associated with ATT&CK technique T1059 Command and Scripting Interpreter if the execution leads to shell access, or T1203 Exploitation for Client Execution if the vulnerability is leveraged through a client-side application like a browser or document viewer that processes escaped content from untrusted sources.
Mitigation strategies must focus on implementing robust input validation and safe memory management practices at the code level. Developers should enforce strict length checks before any buffer operations, ensuring that the destination buffer has sufficient capacity to hold the processed data including all expanded escape sequences. Utilizing safer string handling libraries or functions that automatically manage bounds checking can significantly reduce the risk of such vulnerabilities. Additionally, employing compiler-based security features like stack protectors and address space layout randomization provides defense-in-depth measures that mitigate exploitation even if a vulnerability exists. Regular static analysis scanning for buffer overflow patterns and dynamic fuzzing with malformed escape sequences are essential steps in identifying and remediating these flaws before deployment to production environments.