CVE-2007-4473

CRITICAL 10.0CVE-2007-4473 · Published 17/12/2007 · updated 16/06/2026

In short

CVE-2007-4473 is a CRITICAL (CVSS 10.0) vulnerability affecting opc server (gesytec easylon).
Chance of exploitation in the next 30 days (EPSS): 5.7%, higher than 93.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
opc server gesytec_easylon	`= 2.30.32`	No fix yet

Description

Gesytec Easylon OPC Server before 2.3.44 does not properly validate server handles, which allows remote attackers to execute arbitrary code or cause a denial of service via unspecified network traffic to the OLE for Process Control (OPC) interface, probably related to free operations on arbitrary memory addresses through certain Remove functions, and read and write operations on arbitrary memory addresses through certain Set, Read, and Write functions.

References

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