CVE-2007-4473

no score yetEPSS 5.7%

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.

EPSS: 5.7% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2007-12-17
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

gesytec_easylon:opc_server

References

http://osvdb.org/42650
http://secunia.com/advisories/28079
http://www.kb.cert.org/vuls/id/205073
http://www.neutralbit.com/downloads/NB-NB-001-EXT-OPC%20Security%20Testing.pdf
http://www.neutralbit.com/en/rd/opctest/

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