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ID

VAR-202602-0637


CVE

CVE-2026-2203


TITLE

Shenzhen Tenda Technology Co.,Ltd. of AC8  Multiple vulnerabilities in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-003108

DESCRIPTION

A flaw has been found in Tenda AC8 16.03.33.05. Affected by this vulnerability is an unknown functionality of the file /goform/fast_setting_wifi_set of the component Embedded Httpd Service. This manipulation of the argument timeZone causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used. Exploits are publicly available and may be used.All information handled by the software may be leaked to the outside. All information handled by the software may be rewritten. Furthermore, the software may stop working completely. Furthermore, attacks that exploit this vulnerability will not affect other software

Trust: 1.62

sources: NVD: CVE-2026-2203 // JVNDB: JVNDB-2026-003108

AFFECTED PRODUCTS

vendor:tendamodel:ac8scope:eqversion:16.03.33.05

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vendor:tendamodel:ac8scope:eqversion:ac8 firmware 16.03.33.05

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vendor:tendamodel:ac8scope: - version: -

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vendor:tendamodel:ac8scope:eqversion: -

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sources: JVNDB: JVNDB-2026-003108 // NVD: CVE-2026-2203

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-2203
value: HIGH

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OTHER: JVNDB-2026-003108
value: HIGH

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cna@vuldb.com: CVE-2026-2203
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-2026-003108
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

cna@vuldb.com: CVE-2026-2203
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-2026-003108
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: JVNDB: JVNDB-2026-003108 // NVD: CVE-2026-2203

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-120

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

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problemtype: Classic buffer overflow (CWE-120) [ others ]

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problemtype: Classic buffer overflow (CWE-120) [NVD evaluation ]

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sources: JVNDB: JVNDB-2026-003108 // NVD: CVE-2026-2203

PATCH

title:Tenda AC8 V16.03.33.05 Denial of Serviceurl:https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/fastsettingwifiset-timezome.md

Trust: 0.8

sources: JVNDB: JVNDB-2026-003108

EXTERNAL IDS

db:NVDid:CVE-2026-2203

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db:VULDBid:344906

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db:JVNDBid:JVNDB-2026-003108

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sources: JVNDB: JVNDB-2026-003108 // NVD: CVE-2026-2203

REFERENCES

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

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url:https://vuldb.com/?ctiid.344906

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url:https://github.com/sunnyyangyaya/cuicuishark-sheep-fishiot/blob/main/tenda/ac8/fastsettingwifiset-timezome.md#poc

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url:https://vuldb.com/?submit.750226

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url:https://github.com/sunnyyangyaya/cuicuishark-sheep-fishiot/blob/main/tenda/ac8/fastsettingwifiset-timezome.md

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url:https://vuldb.com/?id.344906

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url:https://nvd.nist.gov/vuln/detail/cve-2026-2203

Trust: 0.8

sources: JVNDB: JVNDB-2026-003108 // NVD: CVE-2026-2203

SOURCES

db:JVNDBid:JVNDB-2026-003108
db:NVDid:CVE-2026-2203

LAST UPDATE DATE

2026-02-12T23:50:18.031000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2026-003108date:2026-02-12T07:26:00
db:NVDid:CVE-2026-2203date:2026-02-10T15:07:15.440

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2026-003108date:2026-02-12T00:00:00
db:NVDid:CVE-2026-2203date:2026-02-09T03:16:13.790