CVE-2021-4144 - Vulnerability Details - OpenCVE

Description

TP-Link wifi router TL-WR802N V4(JP), with firmware version prior to 211202, is vulnerable to OS command injection.

Published: 2021-12-23

Score: 8.8 High

EPSS: 1.9% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

TP-LINK

TL-WR802N V4(JP)

affected

Version	Status	Constraints
`firmware versions prior to 211202`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:tp-link:tl-wr802n_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr802n:v4:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-34013	TP-Link wifi router TL-WR802N V4(JP), with firmware version prior to 211202, is vulnerable to OS command injection.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.01947.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://jvn.jp/en/vu/JVNVU94883311/
https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware

History

No history.

Subscriptions

Tp-link Tl-wr802n Tl-wr802n Firmware

MITRE

Status: PUBLISHED

Assigner: jpcert

Published: 2021-12-23T06:30:10.000Z

Updated: 2024-08-03T17:16:04.225Z

Reserved: 2021-12-21T00:00:00.000Z

Link: CVE-2021-4144

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-12-23T07:15:06.797

Modified: 2026-06-17T04:19:06.690

Link: CVE-2021-4144

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"containers": {"cna": {"affected": [{"product": "TL-WR802N V4(JP)", "vendor": "TP-LINK", "versions": [{"status": "affected", "version": "firmware versions prior to 211202"}]}], "descriptions": [{"lang": "en", "value": "TP-Link wifi router TL-WR802N V4(JP), with firmware version prior to 211202, is vulnerable to OS command injection."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "description": "CWE-78: OS command injection", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-12-23T06:30:09.000Z", "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware"}, {"name": "JVNVU#94883311: TP-Link TL-WR802N V4(JP) vulnerable to OS command injection", "tags": ["third-party-advisory", "x_refsource_JVN"], "url": "https://jvn.jp/en/vu/JVNVU94883311/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vultures@jpcert.or.jp", "ID": "CVE-2021-4144", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "TL-WR802N V4(JP)", "version": {"version_data": [{"version_value": "firmware versions prior to 211202"}]}}]}, "vendor_name": "TP-LINK"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "TP-Link wifi router TL-WR802N V4(JP), with firmware version prior to 211202, is vulnerable to OS command injection."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-78: OS command injection"}]}]}, "references": {"reference_data": [{"name": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware", "refsource": "CONFIRM", "url": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware"}, {"name": "JVNVU#94883311: TP-Link TL-WR802N V4(JP) vulnerable to OS command injection", "refsource": "JVN", "url": "https://jvn.jp/en/vu/JVNVU94883311/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:04.225Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware"}, {"name": "JVNVU#94883311: TP-Link TL-WR802N V4(JP) vulnerable to OS command injection", "tags": ["third-party-advisory", "x_refsource_JVN", "x_transferred"], "url": "https://jvn.jp/en/vu/JVNVU94883311/"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2021-4144", "datePublished": "2021-12-23T06:30:10.000Z", "dateReserved": "2021-12-21T00:00:00.000Z", "dateUpdated": "2024-08-03T17:16:04.225Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "TL-WR802N V4(JP)", "vendor": "TP-LINK", "versions": [{"status": "affected", "version": "firmware versions prior to 211202"}]}], "source": "vultures@jpcert.or.jp"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:tl-wr802n_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9149E97-BE37-4C45-89B4-ADB2E2E38660", "versionEndExcluding": "211202", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:tl-wr802n:v4:*:*:*:*:*:*:*", "matchCriteriaId": "8FA6C0FF-B3F6-41CA-A0CD-FBF40EDC413B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TP-Link wifi router TL-WR802N V4(JP), with firmware version prior to 211202, is vulnerable to OS command injection."}, {"lang": "es", "value": "El router wifi TL-WR802N V4(JP) de TP-Link, con versi\u00f3n de firmware anterior a 211202, es vulnerable a una inyecci\u00f3n de comandos del Sistema Operativo"}], "id": "CVE-2021-4144", "lastModified": "2026-06-17T04:19:06.690", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-23T07:15:06.797", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://jvn.jp/en/vu/JVNVU94883311/"}, {"source": "vultures@jpcert.or.jp", "tags": ["Product", "Vendor Advisory"], "url": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://jvn.jp/en/vu/JVNVU94883311/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Vendor Advisory"], "url": "https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "vultures@jpcert.or.jp", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-78"}], "source": "nvd@nist.gov", "type": "Primary"}]}