PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-46749 Siemens CVE debrief

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.

Vendor
Siemens
Product
SINEC INS
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-23
Advisory published
2026-06-09
Advisory updated
2026-06-23

Who should care

Users of Siemens SINEC INS (All versions < V1.0 SP2 Update 6) should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by the use of a static, hardcoded salt shared across all users and installations, and an insufficient number of iterations in the password hashing implementation. This allows an attacker to efficiently recover user passwords using brute-force or precomputed attacks.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update to SINEC INS V1.0 SP2 Update 6 or later.
  • Implement a secure password hashing algorithm with a sufficient number of iterations.
  • Use a unique salt for each user.

Evidence notes

The vulnerability is described in the CVE-2026-46749 record and the Siemens Security Advisory SSA-860189.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46749 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46749

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46749 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46749

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.