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TI-2023-12071 Aliases CVE-2023-27336GHSA-v94g-ggp4-7f34

NULL pointer dereference in Softing edgeConnector Siemens

Priority MEDIUM 40CWE-476Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00812 57th 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
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
SoftingedgeConnector Siemens3.40—No fix listedCNA
  • edgeConnector Siemens VendorSofting Affected 3.40 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:softing:edgeaggregator:*:*:*:*:*:*:*:*before 3.70VulnerableSofting
cpe:2.3:a:softing:edgeconnector:*:*:*:*:*:*:*:*before 3.70VulnerableSofting
cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:*before 1.30VulnerableSofting
  • cpe:2.3:a:softing:edgeaggregator:*:*:*:*:*:*:*:* Versions before 3.70 Vulnerable ·Softing
  • cpe:2.3:a:softing:edgeconnector:*:*:*:*:*:*:*:* Versions before 3.70 Vulnerable ·Softing
  • cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:* Versions before 1.30 Vulnerable ·Softing

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-27336
  2. 2026-10-03 Alias added: GHSA-v94g-ggp4-7f34

References

Advisory 1

  • TI-2023-19550 Path traversal in Softing edgeAggregator CVSS 3.1HIGH 7.2
  • TI-2022-02157 Softing Secure Integration Server Improper Authentication CVSS 3.1CRITICAL 9.8
  • TI-2022-02155 Softing Secure Integration Server Uncontrolled Search Path Element CVSS 3.1HIGH 7.2
  • TI-2022-01254 Softing Secure Integration Server Relative Path Traversal CVSS 3.1HIGH 7.2
  • TI-2023-12070 Cross-site scripting in Softing edgeAggregator CVSS 3.1CRITICAL 9.6
  • TI-2023-19549 Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code… CVSS 3.1HIGH 8.8
See all 16 →

Sources

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