Details of VAR-202105-0846

ID

VAR-202105-0846

CVE

CVE-2021-30186

TITLE

CODESYS V2 runtime system SP Out-of-bounds Vulnerability in Microsoft

Trust: 0.8

sources: JVNDB: JVNDB-2021-007188

DESCRIPTION

CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow

Trust: 1.71

sources: NVD: CVE-2021-30186 // JVNDB: JVNDB-2021-007188 // VULMON: CVE-2021-30186

AFFECTED PRODUCTS

vendor:	codesys	model:	plcwinnt	scope:	lt	version:	2.4.7.55	Trust: 1.0
vendor:	codesys	model:	runtime toolkit	scope:	lt	version:	2.4.7.55	Trust: 1.0
vendor:	3s smart	model:	codesys plcwinnt	scope:	-	version:	-	Trust: 0.8
vendor:	3s smart	model:	codesys runtime toolkit	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-007188 // NVD: CVE-2021-30186

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-30186
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-30186
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202105-1620
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-30186
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-30186
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

nvd@nist.gov:	CVE-2021-30186
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-2021-30186
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: VULMON: CVE-2021-30186 // JVNDB: JVNDB-2021-007188 // CNNVD: CNNVD-202105-1620 // NVD: CVE-2021-30186

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-007188 // NVD: CVE-2021-30186

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-1620

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202105-1620

PATCH

title:	Advisory 2021-06	url:	https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14725&token=08691519ef764b252630759eff925890176ecd78&download=	Trust: 0.8
title:	-	url:	https://github.com/yossireuven/Publications	Trust: 0.1

sources: VULMON: CVE-2021-30186 // JVNDB: JVNDB-2021-007188

EXTERNAL IDS

db:	NVD	id:	CVE-2021-30186	Trust: 3.3
db:	JVN	id:	JVNVU97061687	Trust: 0.8
db:	ICS CERT	id:	ICSA-21-173-03	Trust: 0.8
db:	JVNDB	id:	JVNDB-2021-007188	Trust: 0.8
db:	CNNVD	id:	CNNVD-202105-1620	Trust: 0.6
db:	VULMON	id:	CVE-2021-30186	Trust: 0.1

sources: VULMON: CVE-2021-30186 // JVNDB: JVNDB-2021-007188 // CNNVD: CNNVD-202105-1620 // NVD: CVE-2021-30186

REFERENCES

url:	https://customers.codesys.com/index.php	Trust: 1.7
url:	https://customers.codesys.com/index.php?eid=dumpfile&t=f&f=14725&token=08691519ef764b252630759eff925890176ecd78&download=	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-30186	Trust: 1.4
url:	https://jvn.jp/vu/jvnvu97061687/index.html	Trust: 0.8
url:	https://www.cisa.gov/uscert/ics/advisories/icsa-21-173-03	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/787.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://github.com/yossireuven/publications	Trust: 0.1

sources: VULMON: CVE-2021-30186 // JVNDB: JVNDB-2021-007188 // CNNVD: CNNVD-202105-1620 // NVD: CVE-2021-30186

SOURCES

db:	VULMON	id:	CVE-2021-30186
db:	JVNDB	id:	JVNDB-2021-007188
db:	CNNVD	id:	CNNVD-202105-1620
db:	NVD	id:	CVE-2021-30186

LAST UPDATE DATE

2024-08-14T12:06:04.924000+00:00

SOURCES UPDATE DATE

db:	VULMON	id:	CVE-2021-30186	date:	2021-05-26T00:00:00
db:	JVNDB	id:	JVNDB-2021-007188	date:	2022-02-03T08:37:00
db:	CNNVD	id:	CNNVD-202105-1620	date:	2021-05-27T00:00:00
db:	NVD	id:	CVE-2021-30186	date:	2021-05-26T13:18:48.713

SOURCES RELEASE DATE

db:	VULMON	id:	CVE-2021-30186	date:	2021-05-25T00:00:00
db:	JVNDB	id:	JVNDB-2021-007188	date:	2022-02-03T00:00:00
db:	CNNVD	id:	CNNVD-202105-1620	date:	2021-05-25T00:00:00
db:	NVD	id:	CVE-2021-30186	date:	2021-05-25T13:15:17.677