Details of VAR-202504-3455

ID

VAR-202504-3455

CVE

CVE-2025-28019

TITLE

TOTOLINK of a800r Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-004381

DESCRIPTION

TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi component. TOTOLINK of a800r 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 A800R is a wireless router from China's TOTOLINK Electronics. Remote attackers can exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-28019 // JVNDB: JVNDB-2025-004381 // CNVD: CNVD-2025-09860

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-09860

AFFECTED PRODUCTS

vendor:	totolink	model:	a800r	scope:	eq	version:	4.1.2cu.5137_b20200730	Trust: 1.0
vendor:	totolink	model:	a800r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a800r	scope:	eq	version:	a800r firmware 4.1.2cu.5137 b20200730	Trust: 0.8
vendor:	totolink	model:	a800r	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	a800r v4.1.2cu.5137 b20200730	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-09860 // JVNDB: JVNDB-2025-004381 // NVD: CVE-2025-28019

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-28019
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2025-004381
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-09860
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-09860
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-28019
baseSeverity:	HIGH
baseScore:	7.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	LOW
exploitabilityScore:	3.9
impactScore:	3.4
version:	3.1
Trust: 1.0
OTHER:	JVNDB-2025-004381
baseSeverity:	HIGH
baseScore:	7.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2025-09860 // JVNDB: JVNDB-2025-004381 // NVD: CVE-2025-28019

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2025-004381 // NVD: CVE-2025-28019

EXTERNAL IDS

db:	NVD	id:	CVE-2025-28019	Trust: 3.2
db:	JVNDB	id:	JVNDB-2025-004381	Trust: 0.8
db:	CNVD	id:	CNVD-2025-09860	Trust: 0.6

sources: CNVD: CNVD-2025-09860 // JVNDB: JVNDB-2025-004381 // NVD: CVE-2025-28019

REFERENCES

url:	https://locrian-lightning-dc7.notion.site/bufferoverflow1-1948e5e2b1a280ad96efca529ecae658	Trust: 2.4
url:	https://locrian-lightning-dc7.notion.site/cve-2025-28019-bufferoverflow1-1948e5e2b1a280ad96efca529ecae658	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2025-28019	Trust: 0.8

sources: CNVD: CNVD-2025-09860 // JVNDB: JVNDB-2025-004381 // NVD: CVE-2025-28019

SOURCES

db:	CNVD	id:	CNVD-2025-09860
db:	JVNDB	id:	JVNDB-2025-004381
db:	NVD	id:	CVE-2025-28019

LAST UPDATE DATE

2025-05-17T03:46:14.623000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-09860	date:	2025-05-15T00:00:00
db:	JVNDB	id:	JVNDB-2025-004381	date:	2025-05-07T07:07:00
db:	NVD	id:	CVE-2025-28019	date:	2025-05-06T20:35:39.160

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-09860	date:	2025-05-13T00:00:00
db:	JVNDB	id:	JVNDB-2025-004381	date:	2025-05-07T00:00:00
db:	NVD	id:	CVE-2025-28019	date:	2025-04-23T17:16:52.920