Details of VAR-202511-0871

ID

VAR-202511-0871

CVE

CVE-2025-60684

TITLE

TOTOLINK of lr1200gb firmware and nr1800x Stack-based buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-020379

DESCRIPTION

A stack buffer overflow vulnerability exists in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) Router firmware within the cstecgi.cgi binary (sub_42F32C function). The web interface reads the "lang" parameter and constructs Help URL strings using sprintf() into fixed-size stack buffers without proper length validation. Maliciously crafted input can overflow these buffers, potentially leading to arbitrary code execution or memory corruption, without requiring authentication

Trust: 1.62

sources: NVD: CVE-2025-60684 // JVNDB: JVNDB-2025-020379

AFFECTED PRODUCTS

vendor:	totolink	model:	lr1200gb	scope:	eq	version:	9.1.0u.6619_b20230130	Trust: 1.0
vendor:	totolink	model:	nr1800x	scope:	eq	version:	9.1.0u.6681_b20230703	Trust: 1.0
vendor:	totolink	model:	nr1800x	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	lr1200gb	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2025-020379 // NVD: CVE-2025-60684

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-60684
value:	MEDIUM
Trust: 1.0
OTHER:	JVNDB-2025-020379
value:	MEDIUM
Trust: 0.8

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-60684
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	3.9
impactScore:	2.5
version:	3.1
Trust: 1.0
OTHER:	JVNDB-2025-020379
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2025-020379 // NVD: CVE-2025-60684

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2025-020379 // NVD: CVE-2025-60684

EXTERNAL IDS

db:	NVD	id:	CVE-2025-60684	Trust: 2.6
db:	JVNDB	id:	JVNDB-2025-020379	Trust: 0.8

sources: JVNDB: JVNDB-2025-020379 // NVD: CVE-2025-60684

REFERENCES

url:	https://github.com/yifan20020708/sgtaint-0-day/blob/main/totolink/totolink-lr1200gb/cve-2025-60684.md	Trust: 1.8
url:	https://www.totolink.net/	Trust: 1.8
url:	http://totolink.com	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2025-60684	Trust: 0.8

sources: JVNDB: JVNDB-2025-020379 // NVD: CVE-2025-60684

SOURCES

db:	JVNDB	id:	JVNDB-2025-020379
db:	NVD	id:	CVE-2025-60684

LAST UPDATE DATE

2025-12-20T23:36:29.975000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2025-020379	date:	2025-11-27T23:37:00
db:	NVD	id:	CVE-2025-60684	date:	2025-11-24T15:33:48.037

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2025-020379	date:	2025-11-28T00:00:00
db:	NVD	id:	CVE-2025-60684	date:	2025-11-13T16:15:52.337