Siemens SINEC INS up to 1.0 SP2 Update 5 hash predictable salt

Summaryinfo

A vulnerability was found in Siemens SINEC INS up to 1.0 SP2 Update 5. It has been rated as problematic. This affects an unknown part. This manipulation causes hash predictable salt. This vulnerability is handled as CVE-2026-46749. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Siemens SINEC INS up to 1.0 SP2 Update 5 and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a hash predictable salt vulnerability. The CWE definition for the vulnerability is CWE-760. The product uses a one-way cryptographic hash against an input that should not be reversible, such as a password, but the product uses a predictable salt as part of the input. As an impact it is known to affect confidentiality. The summary by CVE is:

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The affected application uses a password hashing implementation with a static, hardcoded salt shared across all users and installations, and is configured with an insufficient number of iterations. This could allow an attacker to efficiently recover user passwords using brute-force or precomputed attacks, potentially resulting in unauthorized access.

The advisory is shared at cert-portal.siemens.com. This vulnerability is known as CVE-2026-46749 since 05/18/2026. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1110.002 for this issue.

Upgrading to version 1.0 SP2 Update 6 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-35386). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Siemens

Name

• SINEC INS

Version

• 1.0 SP2 Update 5

License

• commercial

Website

• Vendor: https://www.siemens.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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