Executive Summary

CVE-2026-5495 is a remote code execution vulnerability in Labcenter Electronics Proteus related to the parsing of PDSPRJ files.

The vulnerability occurs because the software does not properly validate user-supplied data, which leads to an out-of-bounds write past the end of an allocated buffer.

An attacker can exploit this flaw by tricking a user into visiting a malicious webpage or opening a malicious file, which then allows the attacker to execute arbitrary code with the privileges of the current process.

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Impact Analysis

This vulnerability can have serious impacts because it allows remote attackers to execute arbitrary code on affected systems.

Successful exploitation could lead to full compromise of the affected application process, potentially allowing attackers to steal data, install malware, or disrupt system operations.

Since exploitation requires user interaction, the risk depends on users opening malicious files or visiting malicious websites.

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Mitigation Strategies

To mitigate this vulnerability, avoid opening PDSPRJ files from untrusted or unknown sources and do not visit suspicious or untrusted webpages that might deliver malicious PDSPRJ files.

Ensure that user interaction is minimized with potentially malicious content, as exploitation requires user action such as opening a malicious file or visiting a malicious page.

Apply any available patches or updates from Labcenter Electronics Proteus once they are released to fix this out-of-bounds write vulnerability.

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