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Fencer Vulns
medium 5.5

CVE-2024-49704 json

A vulnerability has been identified in COMOS V10.3 (All versions < V10.3.3.5.8), COMOS V10.4.0 (All versions), COMOS V10.4.1 (All versions)…

published 2024-12-10 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-43832

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

A vulnerability has been identified in COMOS V10.3 (All versions < V10.3.3.5.8), COMOS V10.4.0 (All versions), COMOS V10.4.1 (All versions), COMOS V10.4.2 (All versions), COMOS V10.4.3 (All versions < V10.4.3.0.47), COMOS V10.4.4 (All versions < V10.4.4.2), COMOS V10.4.4.1 (All versions < V10.4.4.1.21). The Generic Data Mapper, the Engineering Adapter, and the Engineering Interface improperly handle XML External Entity (XXE) entries when parsing configuration and mapping files. This could allow an attacker to extract any file with a known location on the user's system or accessible network folders by persuading a user to use a maliciously crafted configuration or mapping file in one of the affected components.

Patch / fix

  • Siemens COMOS V10.3 V10.3.3.5.8
  • Siemens COMOS V10.4.3 V10.4.3.0.47
  • Siemens COMOS V10.4.4 V10.4.4.2
  • Siemens COMOS V10.4.4.1 V10.4.4.1.21

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-347-08 updated cvss 5.5

Siemens COMOS

  • Siemens COMOS V10.3 <V10.3.3.5.8
    affected: fixed in V10.3.3.5.8, mitigation
  • Siemens COMOS V10.4.0 Siemens COMOS V10.4.1 Siemens COMOS V10.4.2
    affected: mitigation, no fix planned
  • Siemens COMOS V10.4.3 <V10.4.3.0.47
    affected: fixed in V10.4.3.0.47, mitigation
  • Siemens COMOS V10.4.4 <V10.4.4.2
    affected: fixed in V10.4.4.2, mitigation
  • Siemens COMOS V10.4.4.1 <V10.4.4.1.21
    affected: fixed in V10.4.4.1.21, mitigation support.sw.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Siemens COMOS V10.3
  • Siemens COMOS V10.4.0
  • Siemens COMOS V10.4.1
  • Siemens COMOS V10.4.2
  • Siemens COMOS V10.4.3
  • Siemens COMOS V10.4.4
  • Siemens COMOS V10.4.4.1

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.