A vulnerability has been found in Tenda AC21 16.03.08.16. This vulnerability affects unknown code of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone/time leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00088.

Exploitation poc

Automatable no

Technical Impact total

Affected Vendors & Products

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN8.md cve-icon cve-icon cve-icon
https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN9.md cve-icon cve-icon cve-icon
https://vuldb.com/?ctiid.333018 cve-icon cve-icon
https://vuldb.com/?id.333018 cve-icon cve-icon
https://vuldb.com/?submit.694425 cve-icon cve-icon
https://vuldb.com/?submit.694430 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Thu, 20 Nov 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 20 Nov 2025 03:00:00 +0000

Type Values Removed Values Added
Description A vulnerability has been found in Tenda AC21 16.03.08.16. This vulnerability affects unknown code of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone/time leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Title Tenda AC21 SetSysTimeCfg stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2025-11-20T14:52:07.354Z

Reserved: 2025-11-19T19:14:38.513Z

Link: CVE-2025-13446

cve-icon Vulnrichment

Updated: 2025-11-20T14:16:54.691Z

cve-icon NVD

Status : Received

Published: 2025-11-20T15:17:25.713

Modified: 2025-11-20T15:17:25.713

Link: CVE-2025-13446

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.