CVE-2026-51846

Stack Buffer Overflow in Tenda AC7 Firmware Enabling Remote Code Execution

Published Jun 19, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
In Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can lead to remote arbitrary code execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
Title Stack Buffer Overflow in Tenda AC7 Firmware Enabling Remote Code Execution
Type Values Removed Values Added
Title Stack Buffer Overflow in Tenda AC7 Firmware 15.03.06.44’s wanSpeed Parameter Leading to Remote Code Execution
Weaknesses CWE-119
Type Values Removed Values Added
Weaknesses CWE-121
Metrics 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'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Tenda
Tenda ac7
Vendors & Products Tenda
Tenda ac7
Type Values Removed Values Added
Title Stack Buffer Overflow in Tenda AC7 Firmware 15.03.06.44’s wanSpeed Parameter Leading to Remote Code Execution
Weaknesses CWE-119
Type Values Removed Values Added
Description In Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can lead to remote arbitrary code execution.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 22, 2026, 5:15 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Analyzed
Published
Jun 19, 2026, 5:16 PM
Modified
Jul 9, 2026, 4:29 PM