| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.2 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in CODESYS. The impacted element is an unknown function. Executing a manipulation can lead to os command injection. This vulnerability appears as CVE-2021-30187. There is no available exploit. Upgrading the affected component is advised.
Details
A vulnerability classified as critical was found in CODESYS. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was presented 05/25/2021. The advisory is available at customers.codesys.com. This vulnerability was named CVE-2021-30187. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.
Upgrading to version 2.4.7.55 eliminates this vulnerability.
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Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: CODESYS 2.4.7.55
Timeline
04/07/2021 🔍05/25/2021 🔍
05/25/2021 🔍
08/15/2025 🔍
Sources
Advisory: customers.codesys.comStatus: Confirmed
CVE: CVE-2021-30187 (🔍)
GCVE (CVE): GCVE-0-2021-30187
GCVE (VulDB): GCVE-100-175798
Entry
Created: 05/25/2021 21:12Updated: 08/15/2025 23:03
Changes: 05/25/2021 21:12 (35), 05/29/2021 08:23 (5), 05/29/2021 08:24 (18), 08/15/2025 23:03 (16)
Complete: 🔍
Cache ID: 216::103
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