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TI-2023-23262 Aliases CVE-2023-43505GHSA-65vf-c6c4-w8jr

Improper access control in Siemens COMOS

Priority MEDIUM 50CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

A vulnerability has been identified in COMOS (All versions). The affected application lacks proper access controls in SMB shares. This could allow an attacker to access files that the user should not have access to.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00617 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensCOMOSAll versions—No fix listedCNA
  • COMOS VendorSiemens Affected All versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:*all versionsVulnerableSiemens
  • cpe:2.3:a:siemens:comos:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43505
  2. 2026-10-03 Alias added: GHSA-65vf-c6c4-w8jr

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-2023-10103 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
  • TI-2012-02612 Siemens COMOS before 9.1 Patch 413, 9.2 before Update 03 Patch 023, and 10.0 before Patch… CVSS 2.0HIGH 8.5
See all 30 →

Sources

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