CVE-2025-57777 in DASYLab
Summary
by MITRE • 09/02/2025
There is an out of bounds write vulnerability due to improper bounds checking in displ2.dll when parsing a DSB file with Digilent DASYLab. This vulnerability may result in arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted DSB file. The vulnerability affects all versions of DASYLab.
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Analysis
by VulDB Data Team • 09/03/2025
The vulnerability identified as CVE-2025-57777 represents a critical out-of-bounds write flaw within the displ2.dll library component of Digilent DASYLab software. This issue stems from inadequate input validation and bounds checking mechanisms during the parsing of DSB (Digilent Signal Block) files, creating a pathway for malicious code execution. The vulnerability exists at the core of how the software handles file format parsing, specifically when processing structured data within DSB containers that contain crafted malicious payloads.
Technical exploitation of this vulnerability requires an attacker to craft a specially designed DSB file that, when opened by an unsuspecting user, triggers the flawed bounds checking logic in displ2.dll. The out-of-bounds write condition occurs when the application attempts to write data beyond the allocated memory boundaries of the buffer used to store parsed DSB file contents. This memory corruption can be leveraged to overwrite adjacent memory locations, potentially allowing attackers to inject and execute arbitrary code with the privileges of the victim user. The vulnerability is classified under CWE-787, which specifically addresses out-of-bounds writes, and aligns with ATT&CK technique T1203 for Exploitation for Client Execution, as it requires user interaction through file opening to achieve successful exploitation.
The operational impact of this vulnerability extends beyond simple code execution, as it creates a persistent threat vector that can be weaponized for more sophisticated attacks. Since all versions of DASYLab are affected, the attack surface is extensive across the Digilent user base. The vulnerability's exploitation requires social engineering to convince users to open malicious files, making it particularly dangerous in enterprise environments where users may encounter such crafted files through phishing campaigns or compromised software distribution channels. The attack chain typically begins with user interaction, followed by memory corruption, and culminates in arbitrary code execution, potentially enabling full system compromise or lateral movement within network environments.
Mitigation strategies for this vulnerability should prioritize immediate software updates from Digilent to address the root cause in displ2.dll. Organizations should implement strict file validation policies and user education programs to reduce the risk of encountering malicious DSB files. Network-based protections such as email filtering and web proxy configurations can help prevent the delivery of malicious files. Additionally, system administrators should consider implementing application whitelisting controls to restrict execution of untrusted DSB files and monitor for suspicious file access patterns. The vulnerability demonstrates the critical importance of robust input validation in software libraries, particularly those handling user-provided data formats, and highlights the need for comprehensive security testing of file parsing components within scientific and engineering software applications.