LOGO! Soft Comfort Hash Exposure via Unsalted SHA-256 Project Passwords
CVE-2026-57263 Published on August 11, 2026
A vulnerability has been identified in LOGO! Soft Comfort (All versions < V9). The project password feature in the affected products stores the password as an unsalted SHA-256 hash. This could allow an attacker who has obtained the project file to perform efficient offline dictionary or brute-force attacks against the unsalted hash.
Weakness Type
Use of a One-Way Hash without a Salt
The software uses a one-way cryptographic hash against an input that should not be reversible, such as a password, but the software does not also use a salt as part of the input.
Products Associated with CVE-2026-57263
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Affected Versions
Siemens LOGO! Soft Comfort:- Before V9 is affected.