Details of VAR-202505-1004

ID

VAR-202505-1004

CVE

CVE-2025-45790

TITLE

TOTOLINK of A3100R Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-005156

DESCRIPTION

TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in the setMacQos interface of /lib/cste_modules/firewall.so. TOTOLINK of A3100R An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK A3100R is a series of wireless routers produced by China's TOTOLINK Electronics. The vulnerability is caused by the failure of the priority parameter of the setMacQos interface in /lib/cste_modules/firewall.so to correctly verify the length of the input data. No detailed vulnerability details are currently provided

Trust: 2.16

sources: NVD: CVE-2025-45790 // JVNDB: JVNDB-2025-005156 // CNVD: CNVD-2025-11202

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-11202

AFFECTED PRODUCTS

vendor:	totolink	model:	a3100r	scope:	eq	version:	5.9c.1527	Trust: 1.0
vendor:	totolink	model:	a3100r	scope:	eq	version:	a3100r firmware 5.9c.1527	Trust: 0.8
vendor:	totolink	model:	a3100r	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	a3100r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a3100r v5.9c.1527	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-11202 // JVNDB: JVNDB-2025-005156 // NVD: CVE-2025-45790

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2025-45790
value:	CRITICAL
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-45790
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2025-45790
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2025-11202
value:	MEDIUM
Trust: 0.6

CNVD:	CNVD-2025-11202
severity:	MEDIUM
baseScore:	6.4
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2025-45790
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
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-45790
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	2.5
version:	3.1
Trust: 1.0
NVD:	CVE-2025-45790
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-2025-11202 // JVNDB: JVNDB-2025-005156 // NVD: CVE-2025-45790 // NVD: CVE-2025-45790

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2025-005156 // NVD: CVE-2025-45790

PATCH

title:

Patch for TOTOLINK A3100R setMacQos function buffer overflow vulnerability

url:

https://www.cnvd.org.cn/patchInfo/show/692931

Trust: 0.6

sources: CNVD: CNVD-2025-11202

EXTERNAL IDS

db:	NVD	id:	CVE-2025-45790	Trust: 3.2
db:	JVNDB	id:	JVNDB-2025-005156	Trust: 0.8
db:	CNVD	id:	CNVD-2025-11202	Trust: 0.6

sources: CNVD: CNVD-2025-11202 // JVNDB: JVNDB-2025-005156 // NVD: CVE-2025-45790

REFERENCES

url:	https://github.com/sunnyyangyaya/cuicuishark-sheep-fishiot/blob/main/totolink/a3100r-4/readme.md	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2025-45790	Trust: 0.8

sources: CNVD: CNVD-2025-11202 // JVNDB: JVNDB-2025-005156 // NVD: CVE-2025-45790

SOURCES

db:	CNVD	id:	CNVD-2025-11202
db:	JVNDB	id:	JVNDB-2025-005156
db:	NVD	id:	CVE-2025-45790

LAST UPDATE DATE

2025-05-31T22:52:52.686000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-11202	date:	2025-05-30T00:00:00
db:	JVNDB	id:	JVNDB-2025-005156	date:	2025-05-19T01:48:00
db:	NVD	id:	CVE-2025-45790	date:	2025-05-16T15:36:52.570

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-11202	date:	2025-05-30T00:00:00
db:	JVNDB	id:	JVNDB-2025-005156	date:	2025-05-19T00:00:00
db:	NVD	id:	CVE-2025-45790	date:	2025-05-08T20:15:30.327