CVE-2021-30191: High severity codesys v2 web server vulnerability
Published May 25, 2021
·Updated
CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.
Affected Software
55 affected components
CODESYS V2 Web Server<1.1.9.20
All of the following
WAGO 750-893 Firmware<fw08
WAGO 750-893
All of the following
WAGO 750-891 Firmware<fw08
WAGO 750-891
All of the following
WAGO 750-890 Firmware<fw08
WAGO 750-890
All of the following
WAGO 750-889 Firmware<fw15
WAGO 750-889
All of the following
WAGO 750-885 Firmware<fw15
WAGO 750-885
All of the following
WAGO 750-882 Firmware<fw15
WAGO 750-882
All of the following
WAGO 750-881 Firmware<fw15
WAGO 750-881
All of the following
WAGO 750-880 Firmware<fw16
WAGO 750-880
All of the following
WAGO 750-862 Firmware<fw08
WAGO 750-862
All of the following
WAGO 750-852 Firmware<fw15
WAGO 750-852
All of the following
WAGO 750-832 Firmware<fw08
WAGO 750-832
All of the following
WAGO 750-831 Firmware<fw15
WAGO 750-831
All of the following
WAGO 750-829 Firmware<fw15
WAGO 750-829
All of the following
WAGO 750-8202 Firmware<03.06.19_\(18\)
WAGO 750-8202
All of the following
WAGO 750-8203 Firmware<03.06.19_\(18\)
WAGO 750-8203
All of the following
WAGO 750-8204 Firmware<03.06.19_\(18\)
WAGO 750-8204
All of the following
WAGO 750-8206 Firmware<03.06.19_\(18\)
WAGO 750-8206
All of the following
WAGO 750-8207 Firmware<03.06.19_\(18\)
WAGO 750-8207
All of the following
WAGO 750-8208 Firmware<03.06.19_\(18\)
WAGO 750-8208
All of the following
WAGO 750-8210 Firmware<03.06.19_\(18\)
WAGO 750-8210
All of the following
WAGO 750-8211 Firmware<03.06.19_\(18\)
WAGO 750-8211
All of the following
WAGO 750-8212 Firmware<03.06.19_\(18\)
WAGO 750-8212
All of the following
WAGO 750-8213 Firmware<03.06.19_\(18\)
WAGO 750-8213
All of the following
WAGO 750-8214 Firmware<03.06.19_\(18\)
WAGO 750-8214
All of the following
WAGO 750-8216 Firmware<03.06.19_\(18\)
WAGO 750-8216
All of the following
WAGO 750-8217 Firmware<03.06.19_\(18\)
WAGO 750-8217
All of the following
WAGO 750-823 Firmware<fw08
WAGO 750-823
Event History
May 25, 2021
CVE Published
via MITRE·12:09 PM
Data Sourced
via MITRE·12:09 PM
Description
Data Sourced
via NVD·01:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2021-30191?
CVE-2021-30191 is classified as a medium severity vulnerability due to potential buffer overflow risks.
2
How do I fix CVE-2021-30191?
To remediate CVE-2021-30191, update the CODESYS V2 Web-Server to version 1.1.9.20 or later.
3
What impact does CVE-2021-30191 have on systems?
CVE-2021-30191 can lead to potential arbitrary code execution if exploited by an attacker.
4
Is CVE-2021-30191 remotely exploitable?
Yes, CVE-2021-30191 can be exploited remotely if the vulnerable web server is exposed.
5
What software versions are affected by CVE-2021-30191?
CVE-2021-30191 affects all versions of CODESYS V2 Web-Server prior to 1.1.9.20.