Details of VAR-202506-0520

ID

VAR-202506-0520

CVE

CVE-2025-5909

TITLE

TOTOLINK of ex1200t Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-007149

DESCRIPTION

A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T up to 4.1.2cu.5232_B20210713. Affected is an unknown function of the file /boafrm/formReflashClientTbl of the component HTTP POST Request Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. TOTOLINK of ex1200t 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 EX1200T is a wireless router produced by China's TOTOLINK Electronics. Attackers can exploit this vulnerability to execute arbitrary code

Trust: 2.16

sources: NVD: CVE-2025-5909 // JVNDB: JVNDB-2025-007149 // CNVD: CNVD-2025-12873

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-12873

AFFECTED PRODUCTS

vendor:	totolink	model:	ex1200t	scope:	lte	version:	4.1.2cu.5232_b20210713	Trust: 1.0
vendor:	totolink	model:	ex1200t	scope:	lte	version:	ex1200t firmware 4.1.2cu.5232 b20210713 and earlier	Trust: 0.8
vendor:	totolink	model:	ex1200t	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	ex1200t	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	ex1200t 4.1.2cu.5232 b20210713	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-12873 // JVNDB: JVNDB-2025-007149 // NVD: CVE-2025-5909

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com:	CVE-2025-5909
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2025-007149
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-12873
value:	HIGH
Trust: 0.6

cna@vuldb.com:	CVE-2025-5909
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-2025-007149
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-2025-12873
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-2025-5909
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: 1.0
OTHER:	JVNDB-2025-007149
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-2025-12873 // JVNDB: JVNDB-2025-007149 // NVD: CVE-2025-5909

PROBLEMTYPE DATA

problemtype:	CWE-119	Trust: 1.0
problemtype:	CWE-120	Trust: 1.0
problemtype:	Buffer error (CWE-119) [ others ]	Trust: 0.8
problemtype:	Classic buffer overflow (CWE-120) [NVD evaluation ]	Trust: 0.8
problemtype:	Classic buffer overflow (CWE-120) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2025-007149 // NVD: CVE-2025-5909

EXTERNAL IDS

db:	NVD	id:	CVE-2025-5909	Trust: 3.2
db:	VULDB	id:	311682	Trust: 1.8
db:	JVNDB	id:	JVNDB-2025-007149	Trust: 0.8
db:	CNVD	id:	CNVD-2025-12873	Trust: 0.6

sources: CNVD: CNVD-2025-12873 // JVNDB: JVNDB-2025-007149 // NVD: CVE-2025-5909

REFERENCES

url:	https://github.com/byxs0x0/cve2/blob/main/5.md	Trust: 2.4
url:	https://vuldb.com/?id.311682	Trust: 1.8
url:	https://vuldb.com/?submit.592270	Trust: 1.8
url:	https://www.totolink.net/	Trust: 1.8
url:	https://vuldb.com/?ctiid.311682	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2025-5909	Trust: 0.8

sources: CNVD: CNVD-2025-12873 // JVNDB: JVNDB-2025-007149 // NVD: CVE-2025-5909

SOURCES

db:	CNVD	id:	CNVD-2025-12873
db:	JVNDB	id:	JVNDB-2025-007149
db:	NVD	id:	CVE-2025-5909

LAST UPDATE DATE

2025-06-21T23:25:07.284000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-12873	date:	2025-06-19T00:00:00
db:	JVNDB	id:	JVNDB-2025-007149	date:	2025-06-17T04:41:00
db:	NVD	id:	CVE-2025-5909	date:	2025-06-16T17:14:56.647

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-12873	date:	2025-06-19T00:00:00
db:	JVNDB	id:	JVNDB-2025-007149	date:	2025-06-17T00:00:00
db:	NVD	id:	CVE-2025-5909	date:	2025-06-10T02:15:21.007