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TI-2023-23260 Aliases CVE-2023-43503GHSA-6356-496x-hgxh

Cleartext transmission of sensitive information in Siemens COMOS

Priority LOW 33CWE-319Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-319.

Summary

A vulnerability has been identified in COMOS (All versions < V10.4.4). Caching system in the affected application leaks sensitive information such as user and project information in cleartext via UDP.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00309 23rd percentileScored 2026-11-07
Fix Fixed COMOS (Siemens): V10.4.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensCOMOSbefore V10.4.4V10.4.4Patch availableCNA
  • COMOS VendorSiemens Affected before V10.4.4 Fixed in V10.4.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:*before 10.4.4VulnerableSiemens
  • cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:* Versions before 10.4.4 Vulnerable ·Siemens

Remediation

  • Fix · CNA COMOS (Siemens) Fixed in V10.4.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43503
  2. 2026-10-03 Alias added: GHSA-6356-496x-hgxh

References

Advisory 1

  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-20393 Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack KEVCVSS 3.1CRITICAL 9.0
  • TI-2023-23262 Improper access control in Siemens COMOS CVSS 3.1CRITICAL 9.6
  • TI-2023-10103 Buffer overflow in Siemens COMOS V10.2 CVSS 3.1CRITICAL 10.0
  • TI-2023-23261 Buffer overflow in Siemens COMOS CVSS 3.1CRITICAL 9.8
  • TI-2023-25103 Improper access control in Siemens COMOS CVSS 3.1CRITICAL 9.6
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences