Vulnerability Intelligence Report
CVE-2021-29241
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:1.42%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-476 ↗CWE-476 NULL Pointer Dereference
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| codesys | control_for_beaglebone_sl | all |
| codesys | control_for_empc-a\/imx6_sl | all |
| codesys | control_for_iot2000_sl | all |
| codesys | control_for_linux_sl | all |
| codesys | control_for_pfc100_sl | all |
| codesys | control_for_pfc200_sl | all |
| codesys | control_for_raspberry_pi_sl | all |
| codesys | control_runtime_system_toolkit | all |
| codesys | development_system | all |
| codesys | edge_gateway | all |
| codesys | gateway | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.418%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-03-25T00:00:00 |
| Published | 2021-05-03T13:17:03 |
| Last Updated | 2026-05-29T14:01:18 |
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