CODESYS prior 1.1.9.20 Web-Server stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in CODESYS. This impacts an unknown function of the component Web-Server. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2021-30189. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in CODESYS. Affected is some unknown functionality of the component Web-Server. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 05/25/2021. The advisory is shared for download at customers.codesys.com. This vulnerability is traded as CVE-2021-30189. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.1.9.20 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
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-2021-30189 (🔍)
GCVE (CVE): GCVE-0-2021-30189
GCVE (VulDB): GCVE-100-175800

Entryinfo

Created: 05/25/2021 21:13
Updated: 08/15/2025 22:33
Changes: 05/25/2021 21:13 (36), 05/29/2021 08:34 (5), 05/29/2021 08:36 (18), 08/15/2025 22:33 (16)
Complete: 🔍
Cache ID: 216::103

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