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CVE-2007-4473
Gesytec Easylon OPC Server before 2.3.44 does not properly validate server handles, which allows remote attackers to execute arbitrary…
High10.0EPSS 5.7%
- Published
- Updated
- Reserved
- Assigned by
- certcc
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 5.7% · top 7.0% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Weakness
Affected products
n/a
- affected n/a
References (7)
- 28079 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.neutralbit.com/en/rd/opctest/ (opens in a new tab)x_refsource_MISCx_transferred
- 42650 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://www.neutralbit.com/downloads/NB-NB-001-EXT-OPC%20Security%20Testing.pdf (opens in a new tab)x_refsource_MISCx_transferred
- 26876 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- VU#205073 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- easylon-server-code-execution(39062) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2007-4473)Record last updated .