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ID

VAR-202603-1999


CVE

CVE-2026-4254


DESCRIPTION

A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Trust: 1.0

sources: NVD: CVE-2026-4254

AFFECTED PRODUCTS

vendor:tendamodel:ac8scope:lteversion:16.03.50.11

Trust: 1.0

sources: NVD: CVE-2026-4254

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-4254
value: HIGH

Trust: 1.0

cna@vuldb.com: CVE-2026-4254
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: 1.0

cna@vuldb.com: CVE-2026-4254
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

sources: NVD: CVE-2026-4254

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-121

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problemtype:CWE-787

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sources: NVD: CVE-2026-4254

EXTERNAL IDS

db:VULDBid:351212

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db:NVDid:CVE-2026-4254

Trust: 1.0

sources: NVD: CVE-2026-4254

REFERENCES

url:https://vuldb.com/?ctiid.351212

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url:https://vuldb.com/?id.351212

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url:https://github.com/digitalandrew/tenda_ac8_v5/blob/main/cve_report_tenda_ac8_systoolchangepwd_bof.md

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url:https://vuldb.com/?submit.771773

Trust: 1.0

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

Trust: 1.0

sources: NVD: CVE-2026-4254

SOURCES

db:NVDid:CVE-2026-4254

LAST UPDATE DATE

2026-03-20T23:24:14.373000+00:00


SOURCES UPDATE DATE

db:NVDid:CVE-2026-4254date:2026-03-20T13:35:42.853

SOURCES RELEASE DATE

db:NVDid:CVE-2026-4254date:2026-03-16T18:16:10.773