CVE-2007-4473
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.
Key facts
- CVSS score
- 10.0 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-119
- EPSS score
- 5.7% (93th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-4456)
- Published
- December 17, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-4456 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- gesytec easylon / opc server
References
- http://osvdb.org/42650
- http://secunia.com/advisories/28079
- http://www.kb.cert.org/vuls/id/205073(Patch, US Government Resource)
- http://www.neutralbit.com/downloads/NB-NB-001-EXT-OPC%20Security%20Testing.pdf
- http://www.neutralbit.com/en/rd/opctest/
- http://www.securityfocus.com/bid/26876
- https://exchange.xforce.ibmcloud.com/vulnerabilities/39062
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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