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ID

VAR-202511-2269


CVE

CVE-2025-13446


TITLE

Tenda AC21 SetSysTimeCfg file stack buffer overflow vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-29427

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. The Tenda AC21 is a dual-band gigabit wireless router from Tenda Technology, designed for high-speed home internet needs. It supports 802.11ac wave2 technology, with a dual-band concurrent speed of up to 2033Mbps, including 1733Mbps on the 5GHz band, meeting the demands of high-bandwidth applications such as 4K video and live streaming. This vulnerability stems from the `/goform/SetSysTimeCfg` file, where the parameter `timeZone/time` fails to properly validate the length of input data. Attackers could exploit this vulnerability to execute arbitrary code or cause a denial-of-service attack

Trust: 1.44

sources: NVD: CVE-2025-13446 // CNVD: CNVD-2025-29427

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-29427

AFFECTED PRODUCTS

vendor:tendamodel:ac21scope:eqversion:16.03.08.16

Trust: 1.0

vendor:tendamodel:ac21scope:eqversion:v16.03.08.16

Trust: 0.6

sources: CNVD: CNVD-2025-29427 // NVD: CVE-2025-13446

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-13446
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2025-13446
value: CRITICAL

Trust: 1.0

CNVD: CNVD-2025-29427
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-13446
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

CNVD: CNVD-2025-29427
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

cna@vuldb.com: CVE-2025-13446
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

nvd@nist.gov: CVE-2025-13446
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: CNVD: CNVD-2025-29427 // NVD: CVE-2025-13446 // NVD: CVE-2025-13446

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-121

Trust: 1.0

sources: NVD: CVE-2025-13446

EXTERNAL IDS

db:NVDid:CVE-2025-13446

Trust: 1.6

db:VULDBid:333018

Trust: 1.0

db:CNVDid:CNVD-2025-29427

Trust: 0.6

sources: CNVD: CNVD-2025-29427 // NVD: CVE-2025-13446

REFERENCES

url:https://github.com/madgeaaaaa/my_vuln_2/blob/main/tenda/vuln8.md

Trust: 1.6

url:https://www.tenda.com.cn/

Trust: 1.0

url:https://vuldb.com/?submit.694430

Trust: 1.0

url:https://vuldb.com/?ctiid.333018

Trust: 1.0

url:https://vuldb.com/?id.333018

Trust: 1.0

url:https://vuldb.com/?submit.694425

Trust: 1.0

url:https://github.com/madgeaaaaa/my_vuln_2/blob/main/tenda/vuln9.md

Trust: 1.0

sources: CNVD: CNVD-2025-29427 // NVD: CVE-2025-13446

SOURCES

db:CNVDid:CNVD-2025-29427
db:NVDid:CVE-2025-13446

LAST UPDATE DATE

2025-11-28T04:15:39.241000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-29427date:2025-11-27T00:00:00
db:NVDid:CVE-2025-13446date:2025-11-21T20:16:29.907

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-29427date:2025-11-26T00:00:00
db:NVDid:CVE-2025-13446date:2025-11-20T15:17:25.713