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ID

VAR-202202-1224


CVE

CVE-2021-45739


TITLE

TOTOLINK A720R  Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2022-004508

DESCRIPTION

TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the Form_Login function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the flag parameter. TOTOLINK A720R Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. TOTOLINK A720R is a wireless router

Trust: 2.16

sources: NVD: CVE-2021-45739 // JVNDB: JVNDB-2022-004508 // CNVD: CNVD-2022-17121

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-17121

AFFECTED PRODUCTS

vendor:totolinkmodel:a720rscope:eqversion:4.1.5cu.470_b20200911

Trust: 1.0

vendor:totolinkmodel:a720rscope:eqversion: -

Trust: 0.8

vendor:totolinkmodel:a720rscope:eqversion:a720r firmware 4.1.5cu.470_b20200911

Trust: 0.8

vendor:totolinkmodel:a720r v4.1.5cu.470 b20200911scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-17121 // JVNDB: JVNDB-2022-004508 // NVD: CVE-2021-45739

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-45739
value: HIGH

Trust: 1.0

NVD: CVE-2021-45739
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-17121
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202202-253
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2021-45739
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: 1.8

CNVD: CNVD-2022-17121
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: 0.6

nvd@nist.gov: CVE-2021-45739
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-2021-45739
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: CNVD: CNVD-2022-17121 // JVNDB: JVNDB-2022-004508 // CNNVD: CNNVD-202202-253 // NVD: CVE-2021-45739

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:Out-of-bounds writing (CWE-787) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2022-004508 // NVD: CVE-2021-45739

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-253

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-253

PATCH

title:Top Pageurl:https://www.totolink.net/

Trust: 0.8

sources: JVNDB: JVNDB-2022-004508

EXTERNAL IDS

db:NVDid:CVE-2021-45739

Trust: 3.8

db:JVNDBid:JVNDB-2022-004508

Trust: 0.8

db:CNVDid:CNVD-2022-17121

Trust: 0.6

db:CNNVDid:CNNVD-202202-253

Trust: 0.6

sources: CNVD: CNVD-2022-17121 // JVNDB: JVNDB-2022-004508 // CNNVD: CNNVD-202202-253 // NVD: CVE-2021-45739

REFERENCES

url:https://nvd.nist.gov/vuln/detail/cve-2021-45739

Trust: 2.0

url:https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_5/5.md

Trust: 1.6

sources: CNVD: CNVD-2022-17121 // JVNDB: JVNDB-2022-004508 // CNNVD: CNNVD-202202-253 // NVD: CVE-2021-45739

SOURCES

db:CNVDid:CNVD-2022-17121
db:JVNDBid:JVNDB-2022-004508
db:CNNVDid:CNNVD-202202-253
db:NVDid:CVE-2021-45739

LAST UPDATE DATE

2024-11-23T22:54:42.880000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-17121date:2022-03-07T00:00:00
db:JVNDBid:JVNDB-2022-004508date:2023-04-14T07:35:00
db:CNNVDid:CNNVD-202202-253date:2022-03-24T00:00:00
db:NVDid:CVE-2021-45739date:2024-11-21T06:32:59.530

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-17121date:2022-03-07T00:00:00
db:JVNDBid:JVNDB-2022-004508date:2023-04-14T00:00:00
db:CNNVDid:CNNVD-202202-253date:2022-02-04T00:00:00
db:NVDid:CVE-2021-45739date:2022-02-04T02:15:08.340