CVE-2026-57263: CWE-759: Use of a One-Way Hash without a Salt in Siemens LOGO! Soft Comfort
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.
AI Analysis
Technical Summary
This vulnerability involves the use of an unsalted SHA-256 hash for storing project passwords in Siemens LOGO! Soft Comfort software versions before V9. Without a salt, the hash is susceptible to offline dictionary and brute-force attacks if an attacker obtains the project file containing the hashed password. This weakness is classified under CWE-759 (Use of a One-Way Hash without a Salt).
Potential Impact
An attacker who gains access to the project file can attempt to recover the password through offline dictionary or brute-force attacks due to the lack of salting in the hash. This compromises the confidentiality of the project password, potentially allowing unauthorized access or modification of project configurations. The CVSS score of 6.8 reflects a medium impact with high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should protect project files from unauthorized access to prevent attackers from obtaining the unsalted password hashes.
CVE-2026-57263: CWE-759: Use of a One-Way Hash without a Salt in Siemens LOGO! Soft Comfort
Description
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.
CVSS v3.1
Score 6.8medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the use of an unsalted SHA-256 hash for storing project passwords in Siemens LOGO! Soft Comfort software versions before V9. Without a salt, the hash is susceptible to offline dictionary and brute-force attacks if an attacker obtains the project file containing the hashed password. This weakness is classified under CWE-759 (Use of a One-Way Hash without a Salt).
Potential Impact
An attacker who gains access to the project file can attempt to recover the password through offline dictionary or brute-force attacks due to the lack of salting in the hash. This compromises the confidentiality of the project password, potentially allowing unauthorized access or modification of project configurations. The CVSS score of 6.8 reflects a medium impact with high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should protect project files from unauthorized access to prevent attackers from obtaining the unsalted password hashes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2026-06-24T04:43:34.162Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b18a0bf8831d539b860be
Added to database: 08/11/2026, 12:42:08 UTC
Last enriched: 08/11/2026, 13:00:52 UTC
Last updated: 08/12/2026, 02:40:59 UTC
Views: 5
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