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High severity · published May 3, 2021
CVE-2021-29241
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS)
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Control For Beaglebone SL · Codesys
3.0 before 4.0.1.0 · source: NVD
CF
Control For Empc-a/imx6 SL · Codesys
3.0 before 4.0.1.0 · source: NVD
CF
Control For Iot2000 SL · Codesys
3.0 before 4.0.1.0 · source: NVD
CF
Control For Linux SL · Codesys
3.0 before 4.0.1.0 · source: NVD
CF
Control For Pfc100 SL · Codesys
3.0 before 3.5.16.0 · source: NVD
CF
Control For Pfc200 SL · Codesys
3.0 before 3.5.16.0 · source: NVD
CF
Control For Raspberry PI SL · Codesys
3.0 before 4.0.1.0 · source: NVD
CR
Control Runtime System Toolkit · Codesys
3.0 before 3.5.16.70 · source: NVD
DS
Development System · Codesys
3.0 before 3.5.16.70 · source: NVD
EG
Edge Gateway · Codesys
3.0 before 3.5.16.70; 3.0 before 4.1.0.0 · source: NVD
GA
Gateway · Codesys
3.0 before 3.5.16.70 · source: NVD
Affected product
CF
Control For Beaglebone SL
Codesys
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29241
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29241
Permissions Required
https://customers.codesys.com/index.php
Vendor Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=
Vendor Advisory
https://www.codesys.com/security/security-reports.html
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