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ID

VAR-202508-1998


CVE

CVE-2025-9088


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  AC20  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-012184

DESCRIPTION

A vulnerability was found in Tenda AC20 16.03.08.12. This vulnerability affects the function save_virtualser_data of the file /goform/formSetVirtualSer. The manipulation of the argument list leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. of AC20 The firmware contains a buffer error vulnerability, a stack-based buffer overflow vulnerability, and an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability stems from a failure to properly validate the length of input data in the `save_virtualser_data` function parameter `list` in the `/goform/formSetVirtualSer` file. This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-9088 // JVNDB: JVNDB-2025-012184 // CNVD: CNVD-2025-19579

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-19579

AFFECTED PRODUCTS

vendor:tendamodel:ac20scope:eqversion:16.03.08.12

Trust: 1.6

vendor:tendamodel:ac20scope:eqversion: -

Trust: 0.8

vendor:tendamodel:ac20scope: - version: -

Trust: 0.8

vendor:tendamodel:ac20scope:eqversion:ac20 firmware 16.03.08.12

Trust: 0.8

sources: CNVD: CNVD-2025-19579 // JVNDB: JVNDB-2025-012184 // NVD: CVE-2025-9088

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-9088
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2025-9088
value: CRITICAL

Trust: 1.0

OTHER: JVNDB-2025-012184
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2025-19579
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-9088
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-2025-012184
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-2025-19579
severity: HIGH
baseScore: 10.0
vectorString: AV:N/AC:L/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

cna@vuldb.com: CVE-2025-9088
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

nvd@nist.gov: CVE-2025-9088
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

NVD: JVNDB-2025-012184
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-2025-19579 // JVNDB: JVNDB-2025-012184 // NVD: CVE-2025-9088 // NVD: CVE-2025-9088

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-121

Trust: 1.0

problemtype:Buffer error (CWE-119) [ others ]

Trust: 0.8

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-2025-012184 // NVD: CVE-2025-9088

EXTERNAL IDS

db:NVDid:CVE-2025-9088

Trust: 3.2

db:VULDBid:320356

Trust: 1.8

db:JVNDBid:JVNDB-2025-012184

Trust: 0.8

db:CNVDid:CNVD-2025-19579

Trust: 0.6

sources: CNVD: CNVD-2025-19579 // JVNDB: JVNDB-2025-012184 // NVD: CVE-2025-9088

REFERENCES

url:https://github.com/zz2266/.github.io/tree/main/ac20/formsetvirtualser

Trust: 1.8

url:https://github.com/zz2266/.github.io/tree/main/ac20/formsetvirtualser#poc-python-exploit-script

Trust: 1.8

url:https://vuldb.com/?id.320356

Trust: 1.8

url:https://vuldb.com/?submit.632038

Trust: 1.8

url:https://www.tenda.com.cn/

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-9088

Trust: 1.4

url:https://vuldb.com/?ctiid.320356

Trust: 1.0

sources: CNVD: CNVD-2025-19579 // JVNDB: JVNDB-2025-012184 // NVD: CVE-2025-9088

SOURCES

db:CNVDid:CNVD-2025-19579
db:JVNDBid:JVNDB-2025-012184
db:NVDid:CVE-2025-9088

LAST UPDATE DATE

2025-08-29T23:02:39.743000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-19579date:2025-08-28T00:00:00
db:JVNDBid:JVNDB-2025-012184date:2025-08-25T00:42:00
db:NVDid:CVE-2025-9088date:2025-08-21T16:12:57.193

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-19579date:2025-08-28T00:00:00
db:JVNDBid:JVNDB-2025-012184date:2025-08-25T00:00:00
db:NVDid:CVE-2025-9088date:2025-08-16T23:15:26.523