TI-2022-17217 Aliases CVE-2022-37012 GHSA-5xp2-x7qr-wjrx

This vulnerability allows remote attackers to create a denial-of-service condition on…

MEDIUM 42CWE-911Published 2023-03-29 · Updated 2025-02-18

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0178 78th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Unified Automation	OPC UA C++ Demo Server	1.7.6-537	—	No fix listed	CNA

OPC UA C++ Demo Server VendorUnified Automation Affected 1.7.6-537 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:unified-automation:opc_ua_c\+\+_demo_server:1.7.6.537:::::::*	1.7.6.537	Vulnerable	Unified Automation

cpe:2.3:a:unified-automation:opc_ua_c\+\+_demo_server:1.7.6.537:*:*:*:*:*:*:* Versions 1.7.6.537 Vulnerable ·Unified Automation

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-37012
2026-10-03 Alias added: GHSA-5xp2-x7qr-wjrx

References

Advisory 1

https://www.zerodayinitiative.com/advisories/ZDI-22-1030/

Other 1

https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txt

TI-2022-17218 Infinite loop in Unified Automation OPC UA C++ Demo Server CVSS 3.1HIGH 7.5

Sources

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