dbcve.org
Sinec InsApplication · Siemens

CVE-2026-46748

HIGH · 7.8 CVSS v3.1 Published 2026-06-09
Fix available
A fix is available. Upgrade to after 1.0 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

SINEC INS versions prior to V1.0 SP2 Update 6 contain a binary configured with the cap_dac_override capability, which allows the process to bypass file system permission checks (DAC). This misconfiguration grants unrestricted file system access, enabling a local attacker to modify arbitrary files and escalate to root privileges.

MitigationUpdate SINEC INS to V1.0 SP2 Update 6 or later, which removes the unnecessary cap_dac_override capability from the affected binary. If immediate patching is not feasible, review and remove the cap_dac_override capability from the specific binary using standard Linux capability management tools.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sinec InsApplication
Affected:<= 1.0= 1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate SINEC INS installation
    Search for SINEC INS installation directories or binaries, common locations include /opt/siemens/sinec or /usr/siemens/sinec; also check for files named 'sinec' or 'ins' in typical Linux bin directories
    Affected if SINEC INS is installed on the system
  2. Identify the SINEC INS binary
    List all executables in the SINEC INS installation directory and identify the main service binary or daemon process
    Affected if A SINEC INS binary exists on the system
  3. Check file capabilities using getcap
    Run 'getcap -r /path/to/sinec/ins/binary' on the identified binary to list its Linux capabilities
    Affected if The output shows cap_dac_override capability is set on the binary
  4. Verify the installed version
    Check the SINEC INS version by running the binary with a version flag (e.g., --version) or inspecting version files in the installation directory
    Affected if The installed version is 1.0 or any version <= 1.0 (including 1.0)
  5. Confirm the process runs with elevated DAC privileges
    If SINEC INS is running, use 'ps aux | grep sinec' to find the process, then check its capabilities with 'getpcaps <pid>'
    Affected if The running process shows cap_dac_override capability

A system is affected if SINEC INS version 1.0 or lower is installed AND the SINEC INS binary has the cap_dac_override capability set, granting it bypass of file permission checks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 1.0
Interim mitigation

Update SINEC INS to V1.0 SP2 Update 6 or later, which removes the unnecessary cap_dac_override capability from the affected binary. If immediate patching is not feasible, review and remove the cap_dac_override capability from the specific binary using standard Linux capability management tools.

Recommended fix High confidence

V1.0 SP2 Update 6

  1. 1. Identify the current SINEC INS version installed on the system using the system management interface or command line tools.
  2. 2. Schedule a maintenance window for the upgrade, ensuring proper backup of system data and configurations.
  3. 3. Backup all SINEC INS configurations, databases, and critical data according to Siemens backup procedures.
  4. 4. Obtain SINEC INS V1.0 SP2 Update 6 or later from the Siemens Industry Online Support portal (cert-portal.siemens.com or siemens.com/productcert).
  5. 5. Follow the official Siemens upgrade instructions for SINEC INS to install V1.0 SP2 Update 6.
  6. 6. After upgrade, verify the new version is correctly installed by checking the system information.
  7. 7. Verify the vulnerable binary no longer has the cap_dac_override capability by reviewing the capability configuration of the affected binary.
  8. 8. Test critical SINEC INS functionalities to ensure normal operation after the upgrade.
Caveat Review Siemens release notes for V1.0 SP2 Update 6 for any functional changes or migration requirements before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Sinec Ins Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,968.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-46748 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data