Details of VAR-202103-0737

ID

VAR-202103-0737

CVE

CVE-2021-21727

TITLE

ZXHN F623 firmware Vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-005021

DESCRIPTION

A ZTE product has a DoS vulnerability. A remote attacker can amplify traffic by sending carefully constructed IPv6 packets to the affected devices, which eventually leads to device denial of service. This affects:<ZXHN F623><All versions up to V6.0.0P3T33>. ZXHN F623 firmware Contains an unspecified vulnerability.Denial of service (DoS) It may be put into a state

Trust: 1.71

sources: NVD: CVE-2021-21727 // JVNDB: JVNDB-2021-005021 // VULMON: CVE-2021-21727

AFFECTED PRODUCTS

vendor:	zte	model:	zxhn f623	scope:	lt	version:	6.0.0p3t34	Trust: 1.0
vendor:	zte	model:	zxhn f623	scope:	lte	version:	zxhn f623 firmware v6.0.0p3t33 until	Trust: 0.8
vendor:	zte	model:	zxhn f623	scope:	eq	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-005021 // NVD: CVE-2021-21727

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-21727
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-21727
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202103-1624
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-21727
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2021-21727
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9

nvd@nist.gov:	CVE-2021-21727
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-2021-21727
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-2021-21727 // JVNDB: JVNDB-2021-005021 // CNNVD: CNNVD-202103-1624 // NVD: CVE-2021-21727

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	Lack of information (CWE-noinfo) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-005021 // NVD: CVE-2021-21727

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202103-1624

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202103-1624

PATCH

title:	DoS Vulnerability in A ZTE Product	url:	https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014744	Trust: 0.8
title:	ZTE ZXHN F623 Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=146186	Trust: 0.6

sources: JVNDB: JVNDB-2021-005021 // CNNVD: CNNVD-202103-1624

EXTERNAL IDS

db:	NVD	id:	CVE-2021-21727	Trust: 2.5
db:	ZTE	id:	1014744	Trust: 1.7
db:	JVNDB	id:	JVNDB-2021-005021	Trust: 0.8
db:	CNNVD	id:	CNNVD-202103-1624	Trust: 0.6
db:	VULMON	id:	CVE-2021-21727	Trust: 0.1

sources: VULMON: CVE-2021-21727 // JVNDB: JVNDB-2021-005021 // CNNVD: CNNVD-202103-1624 // NVD: CVE-2021-21727

REFERENCES

url:	https://support.zte.com.cn/support/news/loopholeinfodetail.aspx?newsid=1014744	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-21727	Trust: 1.4
url:	https://cwe.mitre.org/data/definitions/.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://exchange.xforce.ibmcloud.com/vulnerabilities/199107	Trust: 0.1

sources: VULMON: CVE-2021-21727 // JVNDB: JVNDB-2021-005021 // CNNVD: CNNVD-202103-1624 // NVD: CVE-2021-21727

SOURCES

db:	VULMON	id:	CVE-2021-21727
db:	JVNDB	id:	JVNDB-2021-005021
db:	CNNVD	id:	CNNVD-202103-1624
db:	NVD	id:	CVE-2021-21727

LAST UPDATE DATE

2024-11-23T22:57:58.665000+00:00

SOURCES UPDATE DATE

db:	VULMON	id:	CVE-2021-21727	date:	2021-04-01T00:00:00
db:	JVNDB	id:	JVNDB-2021-005021	date:	2021-12-06T07:04:00
db:	CNNVD	id:	CNNVD-202103-1624	date:	2021-04-02T00:00:00
db:	NVD	id:	CVE-2021-21727	date:	2024-11-21T05:48:53.443

SOURCES RELEASE DATE

db:	VULMON	id:	CVE-2021-21727	date:	2021-03-29T00:00:00
db:	JVNDB	id:	JVNDB-2021-005021	date:	2021-12-06T00:00:00
db:	CNNVD	id:	CNNVD-202103-1624	date:	2021-03-29T00:00:00
db:	NVD	id:	CVE-2021-21727	date:	2021-03-29T16:15:13.133