Sign-up

ID

VAR-202203-1850


CVE

CVE-2022-26639


TITLE

TP-LINK Technologies  of  TL-WR840N  Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-007442

DESCRIPTION

TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the DNSServers parameter. TP-LINK Technologies of TL-WR840N Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TP-LINK TL-WR840N is a wireless router. Attackers can use this vulnerability to cause program failure, system downtime, restart and other consequences

Trust: 2.16

sources: NVD: CVE-2022-26639 // JVNDB: JVNDB-2022-007442 // CNVD: CNVD-2022-50635

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-50635

AFFECTED PRODUCTS

vendor:tp linkmodel:tl-wr840nscope:eqversion:0.9.1.4.16

Trust: 1.0

vendor:tp linkmodel:tl-wr840nscope: - version: -

Trust: 0.8

vendor:tp linkmodel:tl-wr840nscope:eqversion: -

Trust: 0.8

vendor:tp linkmodel:tl-wr840nscope:eqversion:tl-wr840n firmware 0.9.1.4.16

Trust: 0.8

vendor:tp linkmodel:tl-wr840nscope:eqversion:v6.20

Trust: 0.6

sources: CNVD: CNVD-2022-50635 // JVNDB: JVNDB-2022-007442 // NVD: CVE-2022-26639

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-26639
value: HIGH

Trust: 1.0

NVD: CVE-2022-26639
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-50635
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202203-2380
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2022-26639
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2022-50635
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2022-26639
baseSeverity: HIGH
baseScore: 7.2
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.2
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2022-26639
baseSeverity: HIGH
baseScore: 7.2
vectorString: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-50635 // JVNDB: JVNDB-2022-007442 // CNNVD: CNNVD-202203-2380 // NVD: CVE-2022-26639

PROBLEMTYPE DATA

problemtype:CWE-120

Trust: 1.0

problemtype:Classic buffer overflow (CWE-120) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2022-007442 // NVD: CVE-2022-26639

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202203-2380

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202203-2380

EXTERNAL IDS

db:NVDid:CVE-2022-26639

Trust: 3.8

db:JVNDBid:JVNDB-2022-007442

Trust: 0.8

db:CNVDid:CNVD-2022-50635

Trust: 0.6

db:CNNVDid:CNNVD-202203-2380

Trust: 0.6

sources: CNVD: CNVD-2022-50635 // JVNDB: JVNDB-2022-007442 // CNNVD: CNNVD-202203-2380 // NVD: CVE-2022-26639

REFERENCES

url:https://github.com/quadron-research-lab/hardware-iot/blob/main/tp-link%20tl-wr840n_dnsservers%3d.pdf

Trust: 2.4

url:https://nvd.nist.gov/vuln/detail/cve-2022-26639

Trust: 1.4

url:https://cxsecurity.com/cveshow/cve-2022-26639/

Trust: 0.6

sources: CNVD: CNVD-2022-50635 // JVNDB: JVNDB-2022-007442 // CNNVD: CNNVD-202203-2380 // NVD: CVE-2022-26639

SOURCES

db:CNVDid:CNVD-2022-50635
db:JVNDBid:JVNDB-2022-007442
db:CNNVDid:CNNVD-202203-2380
db:NVDid:CVE-2022-26639

LAST UPDATE DATE

2024-11-23T21:58:28.614000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-50635date:2022-07-11T00:00:00
db:JVNDBid:JVNDB-2022-007442date:2023-07-14T08:37:00
db:CNNVDid:CNNVD-202203-2380date:2022-06-06T00:00:00
db:NVDid:CVE-2022-26639date:2024-11-21T06:54:13.943

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-50635date:2022-07-10T00:00:00
db:JVNDBid:JVNDB-2022-007442date:2023-07-14T00:00:00
db:CNNVDid:CNNVD-202203-2380date:2022-03-28T00:00:00
db:NVDid:CVE-2022-26639date:2022-03-28T23:15:07.810