CVE-2021-30191
HIGH
7.5
CVSS Score
Published: May 25, 2021 at 12:09 PM UTC
Updated: June 17, 2026 at 03:49 AM UTC
55 products affected across 2 vendors750-8202 Firmware750-862 Firmware750-823 Firmware
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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%
Description
CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.1.9.20
Affected range stops below 1.1.9.20, so it looks safe — our inference, not a vendor statement
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8202 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8203 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8204 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8206 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8207 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8208 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8210 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8211 (same device)
v < 03.06.19_(18)
Affected range stops below 03.06.19_(18), so it looks safe — our inference, not a vendor statement
wago-750-8212 (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCPermissions RequiredVendor Advisory
Source: [email protected]
https://customers.codesys.com/index.phpx_refsource_MISCVendor Advisory
Source: [email protected]
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14726&token=553da5d11234bbe1ceed59969d419a71bb8c8747&download=CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-120
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