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Status published
Critical
CVE-2021-30189
CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow....
Vulnerability Description
CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
More from wago
View All →CVE-2021-30195
CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation....
High
7.5
CVE-2021-30194
CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Read....
Critical
9.1
CVE-2021-30193
CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write....
Critical
9.8
CVE-2021-30192
CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security...
Critical
9.8
CVE-2021-30191
CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy...
High
7.5
Affected Vendor
wago
View all reports →Affected Software
750-893 firmware, 750-891 firmware, 750-890 firmware, 750-889 firmware, 750-885 firmware, 750-882 firmware, 750-881 firmware, 750-880 firmware, 750-862 firmware, 750-852 firmware, 750-832 firmware, 750-831 firmware, 750-829 firmware, 750-8202 firmware, 750-8203 firmware, 750-8204 firmware, 750-8206 firmware, 750-8207 firmware, 750-8208 firmware, 750-8210 firmware, 750-8211 firmware, 750-8212 firmware, 750-8213 firmware, 750-8214 firmware, 750-8216 firmware, 750-8217 firmware, v2 web server, 750-823 firmware
Vulnerable Versions:
0
Timeline
Official Publish:
May 25th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.