Details of VAR-202408-0282

ID

VAR-202408-0282

CVE

CVE-2024-7331

TITLE

TOTOLINK of a3300r Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2024-004944

DESCRIPTION

A vulnerability was found in TOTOLINK A3300R 17.0.0cu.557_B20221024 and classified as critical. Affected by this issue is the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-273254 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 a3300r 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 A3300R is a wireless router produced by China's TOTOLINK Electronics Co., Ltd. No detailed vulnerability details are currently available

Trust: 2.16

sources: NVD: CVE-2024-7331 // JVNDB: JVNDB-2024-004944 // CNVD: CNVD-2025-13896

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-13896

AFFECTED PRODUCTS

vendor:	totolink	model:	a3300r	scope:	eq	version:	17.0.0cu.557_b20221024	Trust: 1.0
vendor:	totolink	model:	a3300r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a3300r	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	a3300r	scope:	eq	version:	a3300r firmware 17.0.0cu.557 b20221024	Trust: 0.8
vendor:	totolink	model:	a3300r 17.0.0cu.557 b20221024	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-13896 // JVNDB: JVNDB-2024-004944 // NVD: CVE-2024-7331

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com:	CVE-2024-7331
value:	HIGH
Trust: 1.0
nvd@nist.gov:	CVE-2024-7331
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2024-004944
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-13896
value:	HIGH
Trust: 0.6

cna@vuldb.com:	CVE-2024-7331
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-2024-004944
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-2025-13896
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-2024-7331
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-2024-004944
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-2025-13896 // JVNDB: JVNDB-2024-004944 // NVD: CVE-2024-7331 // NVD: CVE-2024-7331

PROBLEMTYPE DATA

problemtype:	CWE-120	Trust: 1.0
problemtype:	Classic buffer overflow (CWE-120) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2024-004944 // NVD: CVE-2024-7331

EXTERNAL IDS

db:	NVD	id:	CVE-2024-7331	Trust: 3.2
db:	VULDB	id:	273254	Trust: 1.0
db:	JVNDB	id:	JVNDB-2024-004944	Trust: 0.8
db:	CNVD	id:	CNVD-2025-13896	Trust: 0.6

sources: CNVD: CNVD-2025-13896 // JVNDB: JVNDB-2024-004944 // NVD: CVE-2024-7331

REFERENCES

url:	https://github.com/abcdefg-png/iot-vulnerable/blob/main/totolink/a3300r/uploadcustommodule.md	Trust: 1.8
url:	https://vuldb.com/?submit.378351	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2024-7331	Trust: 1.4
url:	https://vuldb.com/?ctiid.273254	Trust: 1.0
url:	https://vuldb.com/?id.273254	Trust: 1.0

sources: CNVD: CNVD-2025-13896 // JVNDB: JVNDB-2024-004944 // NVD: CVE-2024-7331

SOURCES

db:	CNVD	id:	CNVD-2025-13896
db:	JVNDB	id:	JVNDB-2024-004944
db:	NVD	id:	CVE-2024-7331

LAST UPDATE DATE

2025-06-29T23:02:45.085000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-13896	date:	2025-06-27T00:00:00
db:	JVNDB	id:	JVNDB-2024-004944	date:	2024-08-05T05:25:00
db:	NVD	id:	CVE-2024-7331	date:	2024-08-01T17:42:09.417

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-13896	date:	2025-06-27T00:00:00
db:	JVNDB	id:	JVNDB-2024-004944	date:	2024-08-05T00:00:00
db:	NVD	id:	CVE-2024-7331	date:	2024-08-01T00:15:02.770