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ID

VAR-202504-3391


CVE

CVE-2025-4140


TITLE

of netgear  EX6120  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-004716

DESCRIPTION

A vulnerability, which was classified as critical, has been found in Netgear EX6120 1.0.3.94. Affected by this issue is the function sub_30394. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way. of netgear EX6120 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. NETGEAR EX6120 is a wireless extender from NETGEAR. The vulnerability is caused by the sub_30394 function parameter host failing to correctly verify the length of the input data. Attackers can use this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-4140 // JVNDB: JVNDB-2025-004716 // CNVD: CNVD-2025-09917

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-09917

AFFECTED PRODUCTS

vendor:netgearmodel:ex6120scope:eqversion:1.0.3.94

Trust: 1.6

vendor:ネットギアmodel:ex6120scope:eqversion: -

Trust: 0.8

vendor:ネットギアmodel:ex6120scope:eqversion:ex6120 firmware 1.0.3.94

Trust: 0.8

vendor:ネットギアmodel:ex6120scope: - version: -

Trust: 0.8

sources: CNVD: CNVD-2025-09917 // JVNDB: JVNDB-2025-004716 // NVD: CVE-2025-4140

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-4140
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2025-4140
value: CRITICAL

Trust: 1.0

OTHER: JVNDB-2025-004716
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2025-09917
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-4140
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-2025-004716
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-2025-09917
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-2025-4140
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-2025-4140
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

NVD: JVNDB-2025-004716
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/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: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2025-09917 // JVNDB: JVNDB-2025-004716 // NVD: CVE-2025-4140 // NVD: CVE-2025-4140

PROBLEMTYPE DATA

problemtype:CWE-120

Trust: 1.0

problemtype:CWE-119

Trust: 1.0

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

Trust: 0.8

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

Trust: 0.8

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

Trust: 0.8

sources: JVNDB: JVNDB-2025-004716 // NVD: CVE-2025-4140

EXTERNAL IDS

db:NVDid:CVE-2025-4140

Trust: 3.2

db:VULDBid:306632

Trust: 1.8

db:JVNDBid:JVNDB-2025-004716

Trust: 0.8

db:CNVDid:CNVD-2025-09917

Trust: 0.6

sources: CNVD: CNVD-2025-09917 // JVNDB: JVNDB-2025-004716 // NVD: CVE-2025-4140

REFERENCES

url:https://github.com/jylsec/vuldb/blob/main/netgear/netgear_ex6200/buffer_overflow-sub_30394-wifi_2g_onoff_sche/readme.md

Trust: 1.8

url:https://vuldb.com/?id.306632

Trust: 1.8

url:https://vuldb.com/?submit.560788

Trust: 1.8

url:https://www.netgear.com/

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-4140

Trust: 1.4

url:https://vuldb.com/?ctiid.306632

Trust: 1.0

sources: CNVD: CNVD-2025-09917 // JVNDB: JVNDB-2025-004716 // NVD: CVE-2025-4140

SOURCES

db:CNVDid:CNVD-2025-09917
db:JVNDBid:JVNDB-2025-004716
db:NVDid:CVE-2025-4140

LAST UPDATE DATE

2025-05-17T23:07:01.020000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-09917date:2025-05-16T00:00:00
db:JVNDBid:JVNDB-2025-004716date:2025-05-13T02:28:00
db:NVDid:CVE-2025-4140date:2025-05-12T19:40:10.773

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-09917date:2025-05-16T00:00:00
db:JVNDBid:JVNDB-2025-004716date:2025-05-13T00:00:00
db:NVDid:CVE-2025-4140date:2025-04-30T22:15:17.097