CVE-2021-40546

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Published Sep 5, 2023 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed

Description

Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin allows attackers (who have the administrator password) to cause a denial of service (device crash) via a long string in the wifiPwd_5G parameter to /goform/setWifi.

Affected Products

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

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:tenda:ac6_firmware:02.03.01.26:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac6:4.0:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-27721	Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin allows attackers (who have the administrator password) to cause a denial of service (device crash) via a long string in the wifiPwd_5G parameter to /goform/setWifi.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.730% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/doudoudedi/buffer_overflow/blob/main/Tenda%20AC6%20V4.0-Denial%20of%20Service%20Vulnerability.md

History

Oct 1, 2024 1:30 PM Affected versions updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:h:tenda:ac6:-:::::::*
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Tenda Ac6 Ac6 Firmware

Weaknesses

CWE-404

Sources

CVE record Updated: Oct 1, 2024, 1:11 PM

Status: PUBLISHED
Assigner: mitre
Published: Sep 5, 2023, 12:00 AM
Updated: Oct 1, 2024, 1:11 PM
Reserved: Sep 7, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 2:44 AM

Updated: Aug 4, 2024, 2:44 AM

NVD Updated: Jun 17, 2026, 4:07 AM

Status: Modified
Published: Sep 5, 2023, 7:15 PM
Modified: Jun 17, 2026, 4:07 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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