CODESYS prior 1.1.9.20 Web Server access control

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in CODESYS and classified as critical. Affected is an unknown function of the component Web Server. This manipulation causes access control. This vulnerability is handled as CVE-2021-30190. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in CODESYS and classified as critical. Affected by this vulnerability is an unknown part of the component Web Server. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 05/25/2021. The advisory is shared at customers.codesys.com. This vulnerability is known as CVE-2021-30190. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 1.1.9.20 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CODESYS 1.1.9.20

Timelineinfo

04/07/2021 🔍
05/25/2021 +48 days 🔍
05/25/2021 +0 days 🔍
08/15/2025 +1543 days 🔍

Sourcesinfo

Advisory: customers.codesys.com
Status: Confirmed

CVE: CVE-2021-30190 (🔍)
GCVE (CVE): GCVE-0-2021-30190
GCVE (VulDB): GCVE-100-175801

Entryinfo

Created: 05/25/2021 21:13
Updated: 08/15/2025 22:33
Changes: 05/25/2021 21:13 (36), 05/29/2021 08:39 (5), 05/29/2021 08:44 (18), 08/15/2025 22:33 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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