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ID

VAR-202507-2487


CVE

CVE-2025-7913


TITLE

TOTOLINK  of  t6  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-009731

DESCRIPTION

A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. Affected is the function updateWifiInfo of the component MQTT Service. The manipulation of the argument serverIp leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. TOTOLINK of t6 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. The TOTOLINK T6 is a wireless dual-band router from the Chinese company TOTOLINK. This vulnerability stems from the failure of the serverIp parameter in the MQTT service to properly validate the length of input data. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-7913 // JVNDB: JVNDB-2025-009731 // CNVD: CNVD-2025-17144

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-17144

AFFECTED PRODUCTS

vendor:totolinkmodel:t6scope:eqversion:v4.1.5cu.748_b20211015

Trust: 1.0

vendor:totolinkmodel:t6scope:eqversion:t6 firmware v4.1.5cu.748 b20211015

Trust: 0.8

vendor:totolinkmodel:t6scope: - version: -

Trust: 0.8

vendor:totolinkmodel:t6scope:eqversion: -

Trust: 0.8

vendor:totolinkmodel:t6 4.1.5cu.748 b20211015scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2025-17144 // JVNDB: JVNDB-2025-009731 // NVD: CVE-2025-7913

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-7913
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-009731
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-17144
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-7913
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-2025-009731
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

CNVD: CNVD-2025-17144
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-2025-7913
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-2025-009731
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: CNVD: CNVD-2025-17144 // JVNDB: JVNDB-2025-009731 // NVD: CVE-2025-7913

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-2025-009731 // NVD: CVE-2025-7913

EXTERNAL IDS

db:NVDid:CVE-2025-7913

Trust: 3.2

db:VULDBid:317028

Trust: 1.8

db:JVNDBid:JVNDB-2025-009731

Trust: 0.8

db:CNVDid:CNVD-2025-17144

Trust: 0.6

sources: CNVD: CNVD-2025-17144 // JVNDB: JVNDB-2025-009731 // NVD: CVE-2025-7913

REFERENCES

url:https://github.com/anduinbrian/public/blob/main/totolink%20t6/vuln/7.md

Trust: 1.8

url:https://github.com/anduinbrian/public/blob/main/totolink%20t6/vuln/7.md#poc

Trust: 1.8

url:https://vuldb.com/?id.317028

Trust: 1.8

url:https://vuldb.com/?submit.618656

Trust: 1.8

url:https://www.totolink.net/

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-7913

Trust: 1.4

url:https://vuldb.com/?ctiid.317028

Trust: 1.0

sources: CNVD: CNVD-2025-17144 // JVNDB: JVNDB-2025-009731 // NVD: CVE-2025-7913

SOURCES

db:CNVDid:CNVD-2025-17144
db:JVNDBid:JVNDB-2025-009731
db:NVDid:CVE-2025-7913

LAST UPDATE DATE

2025-07-31T23:44:09.269000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-17144date:2025-07-30T00:00:00
db:JVNDBid:JVNDB-2025-009731date:2025-07-24T06:30:00
db:NVDid:CVE-2025-7913date:2025-07-23T16:15:26.443

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-17144date:2025-07-28T00:00:00
db:JVNDBid:JVNDB-2025-009731date:2025-07-24T00:00:00
db:NVDid:CVE-2025-7913date:2025-07-21T00:15:23.793