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Memory Buffer Bounds ErrorWeakness · CWE-119

CVE-2024-22041

HIGH · 7.5 CVSS v3.1 Published 2024-03-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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 Cerberus PRO EN Engineering Tool (All versions), Cerberus PRO EN Fire Panel FC72x IP6 (All versions), Cerberus PRO EN Fire Panel FC72x IP7 (All versions), Cerberus PRO EN Fire Panel FC72x IP8 (All versions < IP8 SR4), Cerberus PRO EN X200 Cloud Distribution IP7 (All versions), Cerberus PRO EN X200 Cloud Distribution IP8 (All versions < V4.3.5618), Cerberus PRO EN X300 Cloud Distribution IP7 (All versions), Cerberus PRO EN X300 Cloud Distribution IP8 (All versions < V4.3.5617), Cerberus PRO UL Compact Panel FC922/924 (All versions < MP4), Cerberus PRO UL Engineering Tool (All versions < MP4), Cerberus PRO UL X300 Cloud Distribution (All versions < V4.3.0001), Desigo Fire Safety UL Compact Panel FC2025/2050 (All versions < MP4), Desigo Fire Safety UL Engineering Tool (All versions < MP4), Desigo Fire Safety UL X300 Cloud Distribution (All versions < V4.3.0001), Sinteso FS20 EN Engineering Tool (All versions), Sinteso FS20 EN Fire Panel FC20 MP6 (All versions), Sinteso FS20 EN Fire Panel FC20 MP7 (All versions), Sinteso FS20 EN Fire Panel FC20 MP8 (All versions < MP8 SR4), Sinteso FS20 EN X200 Cloud Distribution MP7 (All versions), Sinteso FS20 EN X200 Cloud Distribution MP8 (All versions < V4.3.5618), Sinteso FS20 EN X300 Cloud Distribution MP7 (All versions), Sinteso FS20 EN X300 Cloud Distribution MP8 (All versions < V4.3.5617), Sinteso Mobile (All versions). The network communication library in affected systems improperly handles memory buffers when parsing X.509 certificates. This could allow an unauthenticated remote attacker to crash the network service.

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

The network communication library in affected Cerberus PRO, Desigo Fire Safety, and Sinteso products improperly handles memory buffers during X.509 certificate parsing. This memory handling vulnerability allows an unauthenticated remote attacker to cause a denial of service by crashing the network service.

MitigationApply vendor-provided patches or updates to the affected products; for systems that cannot be immediately patched, consider network segmentation to limit exposure to unauthenticated attackers.

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

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
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 installed Siemens fire safety products
    Review system inventory or check installed software packages for Cerberus PRO, Desigo Fire Safety, or Sinteso. On Windows, check Add/Remove Programs or the Siemens installation directory. On Linux, check package manager listings.
    Affected if Any of these three product families are installed and the version falls within the affected range (contact Siemens for specific version numbers).
  2. Determine the product version
    Check the installed version through the product's built-inAbout or version information dialog, or by locating the version in the installation directory (often in a version.txt, about.ini, or similar file in the program folder).
    Affected if The installed version matches the vulnerable versions of Cerberus PRO, Desigo Fire Safety, or Sinteso as documented by Siemens in their security advisory.
  3. Verify network services are exposed
    Check if the network communication services are listening on network ports. Use commands like netstat -an or nmap -sV to identify open ports associated with the fire safety system.
    Affected if The network service is accessible from network segments where unauthenticated attackers could send malicious packets.
  4. Confirm X.509 certificate configuration is in use
    Inspect the product configuration for TLS/SSL or certificate settings. Check configuration files in the product directory for certificate paths, or access the management interface to view certificate settings.
    Affected if X.509 certificates are configured for network communication (TLS/SSL), as this is the attack vector for the vulnerability.
  5. Monitor for service crashes
    Review system event logs (Windows Event Viewer) or system logs (Linux syslog) for sudden network service terminations or restart events, particularly if they correlate with certificate processing.
    Affected if The network service crashes unexpectedly or enters a restart loop, especially when certificates are being processed or renewed.

A user is affected if they have Cerberus PRO, Desigo Fire Safety, or Sinteso installed with a vulnerable version where network services with X.509 certificate handling are exposed to unauthenticated network attackers.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided patches or updates to the affected products; for systems that cannot be immediately patched, consider network segmentation to limit exposure to unauthenticated attackers.

Recommended fix High confidence

Upgrade to the minimum patched version for your specific product (IP8 SR4, V4.3.5618, V4.3.5617, MP4, or V4.3.0001 depending on product)

  1. 1. Identify the specific Cerberus PRO or Desigo Fire Safety product and current firmware/software version from the affected product list.
  2. 2. For Cerberus PRO EN Fire Panel FC72x IP8, upgrade to IP8 SR4 or later.
  3. 3. For Cerberus PRO EN X200 Cloud Distribution IP8, upgrade to V4.3.5618 or later.
  4. 4. For Cerberus PRO EN X300 Cloud Distribution IP8, upgrade to V4.3.5617 or later.
  5. 5. For Cerberus PRO UL Compact Panel FC922/924, upgrade to MP4 or later.
  6. 6. For Cerberus PRO UL Engineering Tool, upgrade to MP4 or later.
  7. 7. For Cerberus PRO UL X300 Cloud Distribution, upgrade to V4.3.0001 or later.
  8. 8. For Desigo Fire Safety UL Compact Panel FC2025/2050, upgrade to MP4 or later.
Caveat Review Siemens release notes for your specific product to confirm compatibility with existing system configurations

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

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2024-22041 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
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