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Sicam Toolbox IiApplication · Siemens

CVE-2024-31854

HIGH · 8.1 CVSS v3.1 Published 2025-07-08
Fix available
A fix is available. Upgrade to 07.11 or later.
See remediation →
90/100
Remediation priority · Urgent
Remotely reachable No privileges 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 SICAM TOOLBOX II (All versions < V07.11). During establishment of a https connection to the TLS server of a managed device, the affected application doesn't check device's certificate common name against an expected value. This could allow an attacker to execute an on-path network (MitM) attack.

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

SICAM TOOLBOX II fails to validate the certificate common name (CN) against the expected value when establishing HTTPS connections to managed devices. This means the application accepts any valid TLS certificate presented by the server, rather than verifying it matches the intended device identity. An attacker positioned on the network path can intercept traffic and present their own certificate to intercept or manipulate communications.

MitigationUpgrade to SICAM TOOLBOX II version V07.11 or later which implements proper certificate common name validation. Until upgraded, ensure communications occur over trusted networks to reduce MITM exposure.

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
Sicam Toolbox IiApplication
Affected:< 07.11

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
Network
Complexity
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/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. Identify the installed SICAM TOOLBOX II version
    Open the application and navigate to Help > About, or check the installed programs list in the Windows Control Panel to locate the version number
    Affected if The installed version is lower than V07.11 (for example, V07.10, V07.00, or earlier)
  2. Confirm HTTPS is used for device communications
    Review the connection settings or device configurations within SICAM TOOLBOX II to determine if HTTPS is enabled for communicating with managed devices
    Affected if The application is configured to use HTTPS connections to reach managed devices or PLCs
  3. Verify certificate validation behavior
    Observe the application's behavior when connecting to a device with a mismatched certificate CN - attempt a connection to a device with an invalid or mismatched TLS certificate and note whether the connection is accepted or rejected
    Affected if The application accepts TLS connections to devices even when the certificate CN does not match the expected device identity, showing no warning or rejection

You are affected if SICAM TOOLBOX II version is below V07.11 AND the application uses HTTPS to communicate with managed devices, allowing connections to proceed even with mismatched certificate common names.

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 07.11 or later
Fixed in 07.11
Interim mitigation

Upgrade to SICAM TOOLBOX II version V07.11 or later which implements proper certificate common name validation. Until upgraded, ensure communications occur over trusted networks to reduce MITM exposure.

Recommended fix High confidence

Sicam Toolbox II V07.11

  1. Obtain Sicam Toolbox II version 07.11 or later from the official Siemens support portal (cert-portal.siemens.com) or through your Siemens customer support channel
  2. Review the release notes and upgrade instructions provided with the new version
  3. Backup current configuration and data according to Siemens backup procedures
  4. Install version 07.11 or later following the standard Siemens software upgrade procedure
  5. After installation, verify that HTTPS connections to TLS servers properly validate certificate common names
  6. Test that legitimate device connections work correctly post-upgrade

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

Fix this in Sicam Toolbox Ii Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

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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-2024-31854 in production — separate from our analysis above.

No notes yet

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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