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PatchSiren cyber security CVE debrief

CVE-2026-46748 Siemens CVE debrief

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The affected system includes a binary that is configured with the cap_dac_override capability. This capability allows the process to bypass file system permission checks, resulting in unrestricted file system access. This could allow a local attacker to escalate privileges leading to arbitrary file modification and gaining root privileges on the system.

Vendor
Siemens
Product
SINEC INS
CVSS
HIGH 8.8
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 apply the necessary updates to prevent local attackers from escalating privileges.

Technical summary

The vulnerability exists due to a binary in SINEC INS being configured with the cap_dac_override capability, allowing unrestricted file system access.

Defensive priority

HIGH

Recommended defensive actions

  • Apply updates to SINEC INS to version V1.0 SP2 Update 6 or later.
  • Restrict access to sensitive areas of the system.
  • Monitor system activity for suspicious behavior.

Evidence notes

The vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46748 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46748

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

  • CVE-2026-46748 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46748

    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.