Sign-up

ID

VAR-202509-1846


CVE

CVE-2025-10838


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  ac21  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558

DESCRIPTION

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. Shenzhen Tenda Technology Co.,Ltd. of ac21 The firmware contains a buffer error vulnerability and a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

Trust: 1.62

sources: NVD: CVE-2025-10838 // JVNDB: JVNDB-2025-015558

AFFECTED PRODUCTS

vendor:tendamodel:ac21scope:lteversion:16.03.08.16

Trust: 1.0

vendor:tendamodel:ac21scope:lteversion:ac21 firmware 16.03.08.16 and earlier

Trust: 0.8

vendor:tendamodel:ac21scope: - version: -

Trust: 0.8

vendor:tendamodel:ac21scope:eqversion: -

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558 // NVD: CVE-2025-10838

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-10838
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-015558
value: HIGH

Trust: 0.8

cna@vuldb.com: CVE-2025-10838
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

OTHER: JVNDB-2025-015558
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: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

cna@vuldb.com: CVE-2025-10838
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

OTHER: JVNDB-2025-015558
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/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: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558 // NVD: CVE-2025-10838

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-120

Trust: 1.0

problemtype:Buffer error (CWE-119) [ others ]

Trust: 0.8

problemtype: Classic buffer overflow (CWE-120) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558 // NVD: CVE-2025-10838

EXTERNAL IDS

db:NVDid:CVE-2025-10838

Trust: 2.6

db:VULDBid:325200

Trust: 1.8

db:JVNDBid:JVNDB-2025-015558

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558 // NVD: CVE-2025-10838

REFERENCES

url:https://github.com/lin-3-start/lin-cve/blob/main/tenda%20ac21/tenda%20ac21%20buffer%20overflow.md

Trust: 1.8

url:https://github.com/lin-3-start/lin-cve/blob/main/tenda%20ac21/tenda%20ac21%20buffer%20overflow.md#poc

Trust: 1.8

url:https://vuldb.com/?id.325200

Trust: 1.8

url:https://vuldb.com/?submit.657126

Trust: 1.8

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

Trust: 1.8

url:https://vuldb.com/?ctiid.325200

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-10838

Trust: 0.8

sources: JVNDB: JVNDB-2025-015558 // NVD: CVE-2025-10838

SOURCES

db:JVNDBid:JVNDB-2025-015558
db:NVDid:CVE-2025-10838

LAST UPDATE DATE

2025-10-12T23:16:59.307000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2025-015558date:2025-10-09T08:00:00
db:NVDid:CVE-2025-10838date:2025-10-03T15:09:55.663

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2025-015558date:2025-10-09T00:00:00
db:NVDid:CVE-2025-10838date:2025-09-23T05:15:35.010