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ID

VAR-202508-2011


CVE

CVE-2025-31355


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  AC6  Vulnerability related to insufficient integrity verification of downloaded code in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-012130

DESCRIPTION

A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability. Shenzhen Tenda Technology Co.,Ltd. of AC6 Firmware contains a flaw in the integrity verification of downloaded code.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. It supports both IPv4 and IPv6 protocols, utilizes the 802.11ac/n wireless standard, and offers a wireless transmission rate of 1167Mbps

Trust: 2.16

sources: NVD: CVE-2025-31355 // JVNDB: JVNDB-2025-012130 // CNVD: CNVD-2025-20156

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-20156

AFFECTED PRODUCTS

vendor:tendamodel:ac6scope:eqversion:02.03.01.110

Trust: 1.6

vendor:tendamodel:ac6scope:eqversion: -

Trust: 0.8

vendor:tendamodel:ac6scope: - version: -

Trust: 0.8

vendor:tendamodel:ac6scope:eqversion:ac6 firmware 02.03.01.110

Trust: 0.8

vendor:tendamodel:ac6scope:eqversion:5.0

Trust: 0.6

sources: CNVD: CNVD-2025-20156 // JVNDB: JVNDB-2025-012130 // NVD: CVE-2025-31355

CVSS

SEVERITY

CVSSV2

CVSSV3

talos-cna@cisco.com: CVE-2025-31355
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2025-31355
value: CRITICAL

Trust: 1.0

NVD: CVE-2025-31355
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2025-20156
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-20156
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

talos-cna@cisco.com: CVE-2025-31355
baseSeverity: HIGH
baseScore: 7.2
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.2
impactScore: 5.9
version: 3.1

Trust: 1.0

nvd@nist.gov: CVE-2025-31355
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: CVE-2025-31355
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-2025-20156 // JVNDB: JVNDB-2025-012130 // NVD: CVE-2025-31355 // NVD: CVE-2025-31355

PROBLEMTYPE DATA

problemtype:CWE-494

Trust: 1.0

problemtype:Incomplete integrity verification of downloaded code (CWE-494) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2025-012130 // NVD: CVE-2025-31355

EXTERNAL IDS

db:NVDid:CVE-2025-31355

Trust: 3.2

db:TALOSid:TALOS-2025-2161

Trust: 2.4

db:JVNDBid:JVNDB-2025-012130

Trust: 0.8

db:CNVDid:CNVD-2025-20156

Trust: 0.6

sources: CNVD: CNVD-2025-20156 // JVNDB: JVNDB-2025-012130 // NVD: CVE-2025-31355

REFERENCES

url:https://talosintelligence.com/vulnerability_reports/talos-2025-2161

Trust: 2.4

url:https://nvd.nist.gov/vuln/detail/cve-2025-31355

Trust: 0.8

sources: CNVD: CNVD-2025-20156 // JVNDB: JVNDB-2025-012130 // NVD: CVE-2025-31355

SOURCES

db:CNVDid:CNVD-2025-20156
db:JVNDBid:JVNDB-2025-012130
db:NVDid:CVE-2025-31355

LAST UPDATE DATE

2025-09-06T00:02:07.455000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-20156date:2025-09-03T00:00:00
db:JVNDBid:JVNDB-2025-012130date:2025-08-22T07:51:00
db:NVDid:CVE-2025-31355date:2025-08-21T18:22:47.147

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-20156date:2025-09-03T00:00:00
db:JVNDBid:JVNDB-2025-012130date:2025-08-22T00:00:00
db:NVDid:CVE-2025-31355date:2025-08-20T14:15:43.343