CVE-2024-49704

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-10 · updated 2026-06-17
Weakness: CWE-611

Description

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.

Affected products

Siemens COMOS V10.3: before V10.3.3.5.8 — fixed in V10.3.3.5.8
Siemens COMOS V10.4.0: all versions
Siemens COMOS V10.4.1: all versions
Siemens COMOS V10.4.2: all versions
Siemens COMOS V10.4.3: before V10.4.3.0.47 — fixed in V10.4.3.0.47
Siemens COMOS V10.4.4: before V10.4.4.2 — fixed in V10.4.4.2
Siemens COMOS V10.4.4.1: before V10.4.4.1.21 — fixed in V10.4.4.1.21

How to fix

Upgrade to a fixed version: 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. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/html/ssa-701627.html

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