CVE-2019-18858
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a...
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
- Record
CVE-2019-18858- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
- Record
CVE-2019-18858- Updated
- 2026-11-02
EUVDEUVD-2019-8554 No score
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
- Record
EUVD-2019-8554- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v33j-h2wh-c582
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a...
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
- Record
GHSA-v33j-h2wh-c582- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
- codesys control for beaglebone
- codesys control for empc-a\/imx6
- codesys control for iot2000
- codesys control for linux
- codesys control for pfc100
- codesys control for pfc200
- codesys control for plcnext
- codesys control for raspberry pi
- codesys control rte
- codesys control runtime system toolkit
- codesys control win
- codesys embedded target visu toolkit
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History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-18858 is a critical vulnerability (CVSS 9.8) in Codesys Control For Beaglebone, published November 20, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.33%, the 83rd percentile. No source names a fixed version.