LOGO! Soft Comfort versions before V9 use a static, hardcoded AES master key for encrypting project files. This cryptographic weakness (CWE-321) permits a local attacker to retrieve the master key from application files or memory. With this key, the attacker can decrypt project files or bypass project passwords without knowledge of the actual user password, compromising confidentiality and integrity of project data. The vulnerability does not require privileges or user interaction but requires local access. No official patch or remediation information is provided in the available data.

An attacker with local access can extract the hardcoded AES master key and decrypt encrypted project files or remove project passwords without authorization. This compromises the confidentiality and integrity of project files, potentially exposing sensitive configuration or intellectual property. There is no indication of availability impact. No known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and consider additional system-level protections to prevent unauthorized access to application files and memory.