Details of VAR-202105-0853

ID

VAR-202105-0853

CVE

CVE-2021-30193

TITLE

CODESYS V2 Web-Server Out-of-bounds Vulnerability in Microsoft

Trust: 0.8

sources: JVNDB: JVNDB-2021-007130

DESCRIPTION

CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write. CODESYS V2 Web-Server Is vulnerable to an out-of-bounds write.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state

Trust: 1.62

sources: NVD: CVE-2021-30193 // JVNDB: JVNDB-2021-007130

AFFECTED PRODUCTS

vendor:	wago	model:	750-8204	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-881	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-891	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-8216	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-862	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-8206	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8211	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8217	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8212	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-882	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-889	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-880	scope:	lt	version:	fw16	Trust: 1.0
vendor:	wago	model:	750-829	scope:	lt	version:	fw15	Trust: 1.0
vendor:	codesys	model:	v2 web server	scope:	lt	version:	1.1.9.20	Trust: 1.0
vendor:	wago	model:	750-832	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-885	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-852	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-8214	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-823	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-893	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-8202	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-831	scope:	lt	version:	fw15	Trust: 1.0
vendor:	wago	model:	750-8210	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8213	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8207	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-890	scope:	lt	version:	fw08	Trust: 1.0
vendor:	wago	model:	750-8208	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	wago	model:	750-8203	scope:	lt	version:	03.06.19_\(18\)	Trust: 1.0
vendor:	3s smart	model:	codesys v2 web server	scope:	eq	version:	-	Trust: 0.8
vendor:	3s smart	model:	codesys v2 web server	scope:	eq	version:	1.1.9.20	Trust: 0.8

sources: JVNDB: JVNDB-2021-007130 // NVD: CVE-2021-30193

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-30193
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-30193
value:	CRITICAL
Trust: 0.8
CNNVD:	CNNVD-202105-1623
value:	CRITICAL
Trust: 0.6

nvd@nist.gov:	CVE-2021-30193
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8

nvd@nist.gov:	CVE-2021-30193
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	CVE-2021-30193
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2021-007130 // CNNVD: CNNVD-202105-1623 // NVD: CVE-2021-30193

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2021-007130 // NVD: CVE-2021-30193

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-1623

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202105-1623

PATCH

title:

Advisory 2021-07

url:

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14726&token=553da5d11234bbe1ceed59969d419a71bb8c8747&download=

Trust: 0.8

sources: JVNDB: JVNDB-2021-007130

EXTERNAL IDS

db:	NVD	id:	CVE-2021-30193	Trust: 3.2
db:	JVN	id:	JVNVU97061687	Trust: 0.8
db:	ICS CERT	id:	ICSA-21-173-02	Trust: 0.8
db:	JVNDB	id:	JVNDB-2021-007130	Trust: 0.8
db:	CNNVD	id:	CNNVD-202105-1623	Trust: 0.6

sources: JVNDB: JVNDB-2021-007130 // CNNVD: CNNVD-202105-1623 // NVD: CVE-2021-30193

REFERENCES

url:	https://customers.codesys.com/index.php	Trust: 1.6
url:	https://customers.codesys.com/index.php?eid=dumpfile&t=f&f=14726&token=553da5d11234bbe1ceed59969d419a71bb8c8747&download=	Trust: 1.6
url:	https://jvn.jp/vu/jvnvu97061687/index.html	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2021-30193	Trust: 0.8
url:	https://www.cisa.gov/uscert/ics/advisories/icsa-21-173-02	Trust: 0.8

sources: JVNDB: JVNDB-2021-007130 // CNNVD: CNNVD-202105-1623 // NVD: CVE-2021-30193

SOURCES

db:	JVNDB	id:	JVNDB-2021-007130
db:	CNNVD	id:	CNNVD-202105-1623
db:	NVD	id:	CVE-2021-30193

LAST UPDATE DATE

2025-08-16T21:34:04.507000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2021-007130	date:	2022-02-03T06:41:00
db:	CNNVD	id:	CNNVD-202105-1623	date:	2021-05-27T00:00:00
db:	NVD	id:	CVE-2021-30193	date:	2025-08-15T20:27:21.247

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2021-007130	date:	2022-02-03T00:00:00
db:	CNNVD	id:	CNNVD-202105-1623	date:	2021-05-25T00:00:00
db:	NVD	id:	CVE-2021-30193	date:	2021-05-25T13:15:17.880