CVE-2021-46122

Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.

CVSS v3 7.2 HIGH
CVSS v2.0 9.0 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-password-reset.html	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:tl-wr840n_firmware:0.9.1_4.17_v0001.0:build_201124_rel.64328n:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*

History

26 Apr 2022, 18:25

Type	Values Removed	Values Added
CPE		cpe:2.3:o:tp-link:tl-wr840n_firmware:0.9.1_4.17_v0001.0:build_201124_rel.64328n:::::: cpe:2.3:h:tp-link:tl-wr840n:6.20:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 9.0 v3 : 7.2
CWE		CWE-120
References	~~(MISC) https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-password-reset.html -~~	(MISC) https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-password-reset.html - Exploit, Third Party Advisory

18 Apr 2022, 17:45

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-04-18 16:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-46122

Mitre link : CVE-2021-46122

CVE.ORG link : CVE-2021-46122

JSON object : View

Products Affected

tp-link

tl-wr840n_firmware
tl-wr840n

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2021-46122", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}]}, "published": "2022-04-18T16:15:08.003", "references": [{"url": "https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-password-reset.html", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature."}, {"lang": "es", "value": "El firmware Tp-Link TL-WR840N (EU) v6.20 (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) es vulnerable a un Desbordamiento del B\u00fafer por medio de la funcionalidad Password reset"}], "lastModified": "2022-04-26T18:25:14.507", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:tl-wr840n_firmware:0.9.1_4.17_v0001.0:build_201124_rel.64328n:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "48C4E17A-370D-4D48-BDBC-9F649AD1B5A1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B1CB92AF-1C4E-45EC-B1E6-71046F1E6008"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}