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ID

VAR-202105-1032


CVE

CVE-2021-29241


TITLE

CODESYS Gateway  In  NULL  Pointer dereference vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-006713

DESCRIPTION

CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS). 3s-smart Software Solutions 3S-Smart Software Solutions CODESYS GatewayService is a gateway service used in CODESYS products by German 3S-Smart Software Solutions (3s-smart Software Solutions)

Trust: 1.8

sources: NVD: CVE-2021-29241 // JVNDB: JVNDB-2021-006713 // VULHUB: VHN-388814 // VULMON: CVE-2021-29241

AFFECTED PRODUCTS

vendor:codesysmodel:gatewayscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control for empc-a\/imx6 slscope:gteversion:3.0

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vendor:codesysmodel:edge gatewayscope:ltversion:3.5.16.70

Trust: 1.0

vendor:codesysmodel:control runtime system toolkitscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:development systemscope:ltversion:3.5.16.70

Trust: 1.0

vendor:codesysmodel:gatewayscope:ltversion:3.5.16.70

Trust: 1.0

vendor:codesysmodel:control for iot2000 slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control for pfc200 slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:edge gatewayscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:development systemscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control for pfc100 slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control runtime system toolkitscope:ltversion:3.5.16.70

Trust: 1.0

vendor:codesysmodel:control for beaglebone slscope:ltversion:4.0.1.0

Trust: 1.0

vendor:codesysmodel:edge gatewayscope:ltversion:4.1.0.0

Trust: 1.0

vendor:codesysmodel:control for pfc200 slscope:ltversion:3.5.16.0

Trust: 1.0

vendor:codesysmodel:control for linux slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control for raspberry pi slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control for linux slscope:ltversion:4.0.1.0

Trust: 1.0

vendor:codesysmodel:control for raspberry pi slscope:ltversion:4.0.1.0

Trust: 1.0

vendor:codesysmodel:control for iot2000 slscope:ltversion:4.0.1.0

Trust: 1.0

vendor:codesysmodel:control for empc-a\/imx6 slscope:ltversion:4.0.1.0

Trust: 1.0

vendor:codesysmodel:control for pfc100 slscope:ltversion:3.5.16.0

Trust: 1.0

vendor:codesysmodel:control for beaglebone slscope:gteversion:3.0

Trust: 1.0

vendor:codesysmodel:control runtime system toolkitscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for raspberry pi slscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for iot2000 slscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for empc-a/imx6 slscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for beaglebone slscope: - version: -

Trust: 0.8

vendor:codesysmodel:gatewayscope: - version: -

Trust: 0.8

vendor:codesysmodel:development systemscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for linux slscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for pfc200 slscope: - version: -

Trust: 0.8

vendor:codesysmodel:control for pfc100 slscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2021-006713 // NVD: CVE-2021-29241

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-29241
value: HIGH

Trust: 1.0

NVD: CVE-2021-29241
value: HIGH

Trust: 0.8

CNNVD: CNNVD-202105-051
value: HIGH

Trust: 0.6

VULHUB: VHN-388814
value: MEDIUM

Trust: 0.1

VULMON: CVE-2021-29241
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-29241
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

VULHUB: VHN-388814
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-29241
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-29241
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-388814 // VULMON: CVE-2021-29241 // CNNVD: CNNVD-202105-051 // JVNDB: JVNDB-2021-006713 // NVD: CVE-2021-29241

PROBLEMTYPE DATA

problemtype:CWE-476

Trust: 1.1

problemtype:NULL Pointer dereference (CWE-476) [NVD evaluation ]

Trust: 0.8

sources: VULHUB: VHN-388814 // JVNDB: JVNDB-2021-006713 // NVD: CVE-2021-29241

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-051

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202105-051

PATCH

title:Advisory 2021-04 CODESYSurl:https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=

Trust: 0.8

title:3S-Smart Software Solutions CODESYS Gateway Fixes for code issue vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=150531

Trust: 0.6

sources: CNNVD: CNNVD-202105-051 // JVNDB: JVNDB-2021-006713

EXTERNAL IDS

db:NVDid:CVE-2021-29241

Trust: 3.4

db:ICS CERTid:ICSA-25-273-04

Trust: 0.8

db:JVNid:JVNVU90492166

Trust: 0.8

db:JVNDBid:JVNDB-2021-006713

Trust: 0.8

db:CNNVDid:CNNVD-202105-051

Trust: 0.6

db:VULHUBid:VHN-388814

Trust: 0.1

db:VULMONid:CVE-2021-29241

Trust: 0.1

sources: VULHUB: VHN-388814 // VULMON: CVE-2021-29241 // CNNVD: CNNVD-202105-051 // JVNDB: JVNDB-2021-006713 // NVD: CVE-2021-29241

REFERENCES

url:https://customers.codesys.com/index.php

Trust: 1.8

url:https://www.codesys.com/security/security-reports.html

Trust: 1.8

url:https://customers.codesys.com/index.php?eid=dumpfile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2021-29241

Trust: 1.4

url:https://jvn.jp/vu/jvnvu90492166/index.html

Trust: 0.8

url:https://www.cisa.gov/news-events/ics-advisories/icsa-25-273-04

Trust: 0.8

url:https://customers.codesys.com/index.php?eid=dumpfile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=

Trust: 0.1

url:https://cwe.mitre.org/data/definitions/476.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: VULHUB: VHN-388814 // VULMON: CVE-2021-29241 // CNNVD: CNNVD-202105-051 // JVNDB: JVNDB-2021-006713 // NVD: CVE-2021-29241

SOURCES

db:VULHUBid:VHN-388814
db:VULMONid:CVE-2021-29241
db:CNNVDid:CNNVD-202105-051
db:JVNDBid:JVNDB-2021-006713
db:NVDid:CVE-2021-29241

LAST UPDATE DATE

2025-10-03T21:55:00.899000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-388814date:2022-04-01T00:00:00
db:VULMONid:CVE-2021-29241date:2021-05-13T00:00:00
db:CNNVDid:CNNVD-202105-051date:2021-12-17T00:00:00
db:JVNDBid:JVNDB-2021-006713date:2025-10-02T06:35:00
db:NVDid:CVE-2021-29241date:2022-04-01T15:26:04.663

SOURCES RELEASE DATE

db:VULHUBid:VHN-388814date:2021-05-03T00:00:00
db:VULMONid:CVE-2021-29241date:2021-05-03T00:00:00
db:CNNVDid:CNNVD-202105-051date:2021-05-03T00:00:00
db:JVNDBid:JVNDB-2021-006713date:2022-01-18T00:00:00
db:NVDid:CVE-2021-29241date:2021-05-03T14:15:07.633