Details of VAR-202508-2450

ID

VAR-202508-2450

CVE

CVE-2025-29520

TITLE

D-Link DSL-7740C Maintenance Module Access Control Error Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-19874

DESCRIPTION

Incorrect access control in the Maintenance module of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows authenticated attackers with low-level privileges to arbitrarily change the high-privileged account passwords and escalate privileges. The D-Link DSL-7740C is a modem manufactured by D-Link, a Chinese company

Trust: 1.44

sources: NVD: CVE-2025-29520 // CNVD: CNVD-2025-19874

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-19874

AFFECTED PRODUCTS

vendor:

d link

model:

dsl-7740c dsl7740c.v6.tr069.20211230

scope:

version:

Trust: 0.6

sources: CNVD: CNVD-2025-19874

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-29520
value:	MEDIUM
Trust: 1.0
CNVD:	CNVD-2025-19874
value:	MEDIUM
Trust: 0.6

CNVD:	CNVD-2025-19874
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-29520
baseSeverity:	MEDIUM
baseScore:	5.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	1.4
version:	3.1
Trust: 1.0

sources: CNVD: CNVD-2025-19874 // NVD: CVE-2025-29520

PROBLEMTYPE DATA

problemtype:

CWE-284

Trust: 1.0

sources: NVD: CVE-2025-29520

EXTERNAL IDS

db:	NVD	id:	CVE-2025-29520	Trust: 1.6
db:	CNVD	id:	CNVD-2025-19874	Trust: 0.6

sources: CNVD: CNVD-2025-19874 // NVD: CVE-2025-29520

REFERENCES

url:	https://gist.github.com/stevenyu113228/da01c377030fd8c92274feca54661202	Trust: 1.0
url:	https://www.dlink.com/en/security-bulletin/	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2025-29520	Trust: 0.6

sources: CNVD: CNVD-2025-19874 // NVD: CVE-2025-29520

SOURCES

db:	CNVD	id:	CNVD-2025-19874
db:	NVD	id:	CVE-2025-29520

LAST UPDATE DATE

2025-09-02T23:35:37.887000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-19874	date:	2025-08-29T00:00:00
db:	NVD	id:	CVE-2025-29520	date:	2025-08-26T16:15:33.833

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-19874	date:	2025-08-29T00:00:00
db:	NVD	id:	CVE-2025-29520	date:	2025-08-25T15:15:38.103