Details of VAR-202511-2049

ID

VAR-202511-2049

CVE

CVE-2025-63456

TITLE

Shenzhen Tenda Technology Co.,Ltd. of ax1803 Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-019487

DESCRIPTION

Tenda AX-1803 v1.0.0.1 was discovered to contain a stack overflow via the time parameter in the SetSysTimeCfg function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. Shenzhen Tenda Technology Co.,Ltd. of ax1803 An out-of-bounds write vulnerability exists in firmware.Service operation interruption (DoS) It may be in a state. The Tenda AX-1803 is a dual-band gigabit WiFi 6 wireless router from Tenda, supporting both 2.4GHz and 5GHz bands with a maximum transmission rate of 1774Mbps, suitable for home or small office environments. This vulnerability stems from the fact that the `time` parameter in the `SetSysTimeCfg` function fails to properly validate the length of the input data

Trust: 2.16

sources: NVD: CVE-2025-63456 // JVNDB: JVNDB-2025-019487 // CNVD: CNVD-2025-28842

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-28842

AFFECTED PRODUCTS

vendor:	tenda	model:	ax1803	scope:	eq	version:	1.0.0.1	Trust: 1.0
vendor:	tenda	model:	ax1803	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ax1803	scope:	eq	version:	ax1803 firmware 1.0.0.1	Trust: 0.8
vendor:	tenda	model:	ax1803	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	ax-1803	scope:	eq	version:	v1.0.0.1	Trust: 0.6

sources: CNVD: CNVD-2025-28842 // JVNDB: JVNDB-2025-019487 // NVD: CVE-2025-63456

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2025-63456
value:	HIGH
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63456
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2025-63456
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-28842
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-28842
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2025-63456
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63456
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2025-63456
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2025-28842 // JVNDB: JVNDB-2025-019487 // NVD: CVE-2025-63456 // NVD: CVE-2025-63456

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	CWE-121	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-2025-019487 // NVD: CVE-2025-63456

EXTERNAL IDS

db:	NVD	id:	CVE-2025-63456	Trust: 3.2
db:	JVNDB	id:	JVNDB-2025-019487	Trust: 0.8
db:	CNVD	id:	CNVD-2025-28842	Trust: 0.6

sources: CNVD: CNVD-2025-28842 // JVNDB: JVNDB-2025-019487 // NVD: CVE-2025-63456

REFERENCES

url:	https://github.com/0-fool/vulnbycola/blob/main/tenda/ax-1803/3/1.md	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2025-63456	Trust: 0.8

sources: CNVD: CNVD-2025-28842 // JVNDB: JVNDB-2025-019487 // NVD: CVE-2025-63456

SOURCES

db:	CNVD	id:	CNVD-2025-28842
db:	JVNDB	id:	JVNDB-2025-019487
db:	NVD	id:	CVE-2025-63456

LAST UPDATE DATE

2025-11-23T23:39:42.669000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-28842	date:	2025-11-20T00:00:00
db:	JVNDB	id:	JVNDB-2025-019487	date:	2025-11-20T03:18:00
db:	NVD	id:	CVE-2025-63456	date:	2025-11-18T17:16:09.087

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-28842	date:	2025-11-19T00:00:00
db:	JVNDB	id:	JVNDB-2025-019487	date:	2025-11-20T00:00:00
db:	NVD	id:	CVE-2025-63456	date:	2025-11-10T17:15:34.957