CVE-2025-7231: 
VT Designer vulnerability analysis and mitigation

INVT VT-Designer contains a remote code execution vulnerability (CVE-2025-7231) discovered in July 2025. The vulnerability specifically affects the parsing of PM3 files in INVT VT-Designer version 2.1.13. This security flaw was initially reported to the vendor on March 5, 2025, and was later published as a zero-day vulnerability on July 7, 2025 (Zero Day Initiative).

The vulnerability exists within the parsing of PM3 files and is classified as an Out-Of-Bounds Write vulnerability (CWE-787). The issue stems from the lack of proper validation of user-supplied data, which can result in a write operation past the end of an allocated data structure. The vulnerability has been assigned a CVSS v3.0 base score of 7.8 (High) with the following vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (Zero Day Initiative).

If successfully exploited, this vulnerability allows remote attackers to execute arbitrary code on affected installations of INVT VT-Designer. The attacker can leverage this vulnerability to execute code in the context of the current process, potentially gaining complete control over the affected system (Zero Day Initiative).

The exploitation of this vulnerability requires user interaction, specifically the target must visit a malicious page or open a malicious file. The vulnerability has been published as a zero-day, indicating that it was publicly disclosed before a patch was available (Zero Day Initiative).

Given the nature of the vulnerability, the only recommended mitigation strategy is to restrict interaction with the product. No official patch was available at the time of disclosure (Zero Day Initiative).

Multiple attempts were made to contact the vendor through different channels, including through ICS-CERT from May 14, 2025, to June 24, 2025. After unsuccessful attempts to reach the vendor, the Zero Day Initiative decided to publish the case as a zero-day advisory (Zero Day Initiative).