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ID

VAR-202507-0198


CVE

CVE-2025-6940


TITLE

TOTOLINK  of  A702R  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-008162

DESCRIPTION

A vulnerability classified as critical was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected by this vulnerability is an unknown functionality of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. TOTOLINK of A702R 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-2025-6940 // JVNDB: JVNDB-2025-008162

AFFECTED PRODUCTS

vendor:totolinkmodel:a702rscope:eqversion:4.0.0-b20230721.1521

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vendor:totolinkmodel:a702rscope:eqversion: -

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vendor:totolinkmodel:a702rscope: - version: -

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vendor:totolinkmodel:a702rscope:eqversion:a702r firmware 4.0.0-b20230721.1521

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sources: JVNDB: JVNDB-2025-008162 // NVD: CVE-2025-6940

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-6940
value: HIGH

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OTHER: JVNDB-2025-008162
value: HIGH

Trust: 0.8

cna@vuldb.com: CVE-2025-6940
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-2025-008162
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-2025-6940
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-2025-008162
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-2025-008162 // NVD: CVE-2025-6940

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-120

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

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

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sources: JVNDB: JVNDB-2025-008162 // NVD: CVE-2025-6940

EXTERNAL IDS

db:NVDid:CVE-2025-6940

Trust: 2.6

db:VULDBid:314461

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db:JVNDBid:JVNDB-2025-008162

Trust: 0.8

sources: JVNDB: JVNDB-2025-008162 // NVD: CVE-2025-6940

REFERENCES

url:https://github.com/awindog/cve/blob/main/688/27.md

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url:https://github.com/awindog/cve/blob/main/688/27.md#poc

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url:https://vuldb.com/?id.314461

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url:https://vuldb.com/?submit.605861

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

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url:https://vuldb.com/?ctiid.314461

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-6940

Trust: 0.8

sources: JVNDB: JVNDB-2025-008162 // NVD: CVE-2025-6940

SOURCES

db:JVNDBid:JVNDB-2025-008162
db:NVDid:CVE-2025-6940

LAST UPDATE DATE

2025-07-09T23:04:22.547000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2025-008162date:2025-07-08T05:43:00
db:NVDid:CVE-2025-6940date:2025-07-07T14:41:12.100

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2025-008162date:2025-07-08T00:00:00
db:NVDid:CVE-2025-6940date:2025-07-01T03:15:21.670