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CVE

CVE-2024-22039

A vulnerability has been identified in Cerberus PRO EN Engineering Tool (All versions < IP8), Cerberus PRO EN Fire Panel

A vulnerability has been identified in Cerberus PRO EN Engineering Tool (All versions < IP8), Cerberus PRO EN Fire Panel FC72x IP6 (All versions < IP6 SR3), Cerberus PRO EN Fire Panel FC72x IP7 (All versions < IP7 SR5), Cerberus PRO EN X200 Cloud Distribution IP7 (All versions < V3.0.6602), Cerberus PRO EN X200 Cloud Distribution IP8 (All versions < V4.0.5016), Cerberus PRO EN X300 Cloud Distribution IP7 (All versions < V3.2.6601), Cerberus PRO EN X300 Cloud Distribution IP8 (All versions < V4.2.5015), 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 < MP8), Sinteso FS20 EN Fire Panel FC20 MP6 (All versions < MP6 SR3), Sinteso FS20 EN Fire Panel FC20 MP7 (All versions < MP7 SR5), Sinteso FS20 EN X200 Cloud Distribution MP7 (All versions < V3.0.6602), Sinteso FS20 EN X200 Cloud Distribution MP8 (All versions < V4.0.5016), Sinteso FS20 EN X300 Cloud Distribution MP7 (All versions < V3.2.6601), Sinteso FS20 EN X300 Cloud Distribution MP8 (All versions < V4.2.5015), Sinteso Mobile (All versions < V3.0.0). The network communication library in affected systems does not validate the length of certain X.509 certificate attributes which might result in a stack-based buffer overflow. This could allow an unauthenticated remote attacker to execute code on the underlying operating system with root privileges.

CRITICAL · CVSS 10 EPSS 0.11049
Act now
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 6% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
Look this up elsewhere - one-click external pivots
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
▸ How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2024-22039, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
◆

ATT&CK techniques

2

Techniques this CVE enables - linked via CWECAPECATT&CK. High◆ = named directly in ATT&CK or Nuclei templates.

T1190 · Exploit Public-Facing Application T1482 · Domain Trust Discovery
▤ Build a SIEM detection for these techniques
▤

CAPEC attack patterns

12

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-10 · Buffer Overflow via Environment Variables CAPEC-CAPEC-100 · Overflow Buffers CAPEC-CAPEC-14 · Client-side Injection-induced Buffer Overflow CAPEC-CAPEC-24 · Filter Failure through Buffer Overflow CAPEC-CAPEC-42 · MIME Conversion CAPEC-CAPEC-44 · Overflow Binary Resource File CAPEC-CAPEC-45 · Buffer Overflow via Symbolic Links CAPEC-CAPEC-46 · Overflow Variables and Tags CAPEC-CAPEC-47 · Buffer Overflow via Parameter Expansion CAPEC-CAPEC-67 · String Format Overflow in syslog() CAPEC-CAPEC-8 · Buffer Overflow in an API Call CAPEC-CAPEC-9 · Buffer Overflow in Local Command-Line Utilities
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

9
siemens cerberus pro en engineering tool< ip8
siemens cerberus pro en fire panel fc72x< ip8
siemens cerberus pro en x200 cloud distribution< 4.0.5016
siemens cerberus pro en x300 cloud distribution< 4.2.5015
siemens sinteso fs20 en engineering tool< mp8
siemens sinteso fs20 en fire panel fc20< mp8
siemens sinteso fs20 en x200 cloud distribution< 4.0.5016
siemens sinteso fs20 en x300 cloud distribution< 4.2.5015
⚠

Public Exploits & PoCs

1
These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted.
pocfkie-cad/nvd-json-data-feeds (trickest)
▣

Scoring & Timeline

10
CRITICAL · CVSS v3.1 · [email protected]
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Mar 2024 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

4
siemens-csafSSA-953710
siemens-csafSSA-225840
cisa-csafcisa-csaf-csaf_files-OT-white-2024-icsa-24-074-09
cisa-csafcisa-csaf-csaf_files-OT-white-2024-icsa-24-137-12
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/html/ssa-225840.htmlPatchVendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-953710.html
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