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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Tenda AC8 affected
Version Status Constraints
16.03.50.0 affected —
16.03.50.1 affected —
16.03.50.2 affected —
16.03.50.3 affected —
16.03.50.4 affected —
16.03.50.5 affected —
16.03.50.6 affected —
16.03.50.7 affected —
16.03.50.8 affected —
16.03.50.9 affected —
16.03.50.10 affected —
16.03.50.11 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Tenda Subscribe
Ac8 Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/digitalandrew/tenda_ac8_v5/blob/main/CVE_Report_Tenda_AC8_SysToolChangePwd_BOF.md cve-icon cve-icon
https://vuldb.com/?ctiid.351212 cve-icon cve-icon
https://vuldb.com/?id.351212 cve-icon cve-icon
https://vuldb.com/?submit.771773 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Mon, 16 Mar 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow
First Time appeared Tenda
Tenda ac8 Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda ac8 Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-16T18:29:35.800Z

Reserved: 2026-03-16T06:16:10.100Z

Link: CVE-2026-4254

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-16T18:16:10.773

Modified: 2026-03-16T18:16:10.773

Link: CVE-2026-4254

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses