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ID

VAR-202408-0320


CVE

CVE-2024-7335


TITLE

TOTOLINK  of  EX200  Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2024-005343

DESCRIPTION

A vulnerability classified as critical has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of EX200 Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. ‌TOTOLINK EX200 is a 2.4G wireless N range extender designed to expand the coverage of existing Wi-Fi networks. The vulnerability stems from the function getSaveConfig in the file /cgi-bin/cstecgi.cgi?action=save&setting as parameter http_host, which causes a buffer overflow. No detailed vulnerability details are currently provided

Trust: 2.16

sources: NVD: CVE-2024-7335 // JVNDB: JVNDB-2024-005343 // CNVD: CNVD-2025-13898

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-13898

AFFECTED PRODUCTS

vendor:totolinkmodel:ex200scope:eqversion:4.0.3c.7646_b20201211

Trust: 1.0

vendor:totolinkmodel:ex200scope:eqversion: -

Trust: 0.8

vendor:totolinkmodel:ex200scope: - version: -

Trust: 0.8

vendor:totolinkmodel:ex200scope:eqversion:ex200 firmware 4.0.3c.7646 b20201211

Trust: 0.8

vendor:totolinkmodel:ex200 v4.0.3c.7646 b20201211scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2025-13898 // JVNDB: JVNDB-2024-005343 // NVD: CVE-2024-7335

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2024-7335
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2024-7335
value: HIGH

Trust: 1.0

OTHER: JVNDB-2024-005343
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-13898
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2024-7335
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-2024-005343
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-2025-13898
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-2024-7335
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: 2.0

NVD: JVNDB-2024-005343
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-2025-13898 // JVNDB: JVNDB-2024-005343 // NVD: CVE-2024-7335 // NVD: CVE-2024-7335

PROBLEMTYPE DATA

problemtype:CWE-120

Trust: 1.0

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

Trust: 0.8

sources: JVNDB: JVNDB-2024-005343 // NVD: CVE-2024-7335

EXTERNAL IDS

db:NVDid:CVE-2024-7335

Trust: 3.2

db:VULDBid:273258

Trust: 1.0

db:JVNDBid:JVNDB-2024-005343

Trust: 0.8

db:CNVDid:CNVD-2025-13898

Trust: 0.6

sources: CNVD: CNVD-2025-13898 // JVNDB: JVNDB-2024-005343 // NVD: CVE-2024-7335

REFERENCES

url:https://github.com/abcdefg-png/iot-vulnerable/blob/main/totolink/ex200/getsaveconfig.md

Trust: 1.8

url:https://vuldb.com/?submit.379313

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2024-7335

Trust: 1.4

url:https://vuldb.com/?ctiid.273258

Trust: 1.0

url:https://vuldb.com/?id.273258

Trust: 1.0

sources: CNVD: CNVD-2025-13898 // JVNDB: JVNDB-2024-005343 // NVD: CVE-2024-7335

SOURCES

db:CNVDid:CNVD-2025-13898
db:JVNDBid:JVNDB-2024-005343
db:NVDid:CVE-2024-7335

LAST UPDATE DATE

2025-06-29T22:51:23.690000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-13898date:2025-06-27T00:00:00
db:JVNDBid:JVNDB-2024-005343date:2024-08-15T02:05:00
db:NVDid:CVE-2024-7335date:2024-08-09T14:05:30.013

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-13898date:2025-06-27T00:00:00
db:JVNDBid:JVNDB-2024-005343date:2024-08-15T00:00:00
db:NVDid:CVE-2024-7335date:2024-08-01T02:15:02.900